See from here, buddy. A farmer has 19 sheep All but 7 die How many are left? There are many possible combinations of atoms. 59) What property of an electron makes it possible to use electron microscopes? 117) According to the shell model, which electrons play the most significant role in determining the properties of an atom? 116) Which of the following statements about electrons is true? D) Two of the above are reasonable answers. 56) Which of the following is not the name of a chemical family? C, B, A. What does the following element description actually mean? When converted to meters and expressed in scientific notation, you can easily compare the measurements. 64) Which of the following physical properties would you expect for krypton (Kr)? So the power three a bomb New radius off the dome. Five times 10 to the power minus 15. 10 - 15 m x big picture ( students do n't have to state ) : nuclei are very small , very much smaller than the total size of the 90) How is it possible to deduce the identity of an element from its electron configuration? These transitions would produce three spectral lines in a spectroscope. Electrons Electrons are located outside of the nucleus of an atom in the "electron cloud." They are smaller and have less mass than protons and neutrons. atom. D) A broad spectrum of all colors would be observed. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. That is Which of the following elements is a halogen? What is the average 40 yard dash time for a 11 year old boy? B) The neutron lacks an electrical charge. Which of the following statements best describes an element? The atomic mass of bromine is reported in the periodic table as 79.904 amu. How many electrons does this iron atom have? In the nucleus of the atom, along with neutrons. D. Two of the above are reasonable answers. Consider these atoms: nickel, Ni; calcium, Ca; and silicon, Si. Which of the following is not the name of a chemical family? 40) What subatomic particle by itself is least affected by electromagnetic radiation? 76) If two protons and two neutrons are removed from the nucleus of an oxygen atom, a nucleus of which element remains? If an atom were the size of a baseball stadium its nucleus would be about the size of what? 60) Which of the following elements are in the same period as magnesium (Mg)? Which change happens when a substance melts? 97) An atom absorbs or emits only particular frequencies of light. What is the name of this element? Referring to Problem $1,$ suppose the nucleus of the hydrogen atom were enlarged to the size of a baseball (diameter $=7.3 \mathrm{cm} ) .$ At what typical distance from the center of the baseball would you expect to find the electron? flea. 18) Some older cars vibrate loudly when driving at particular speeds. Carbon dioxide would then have a mass of 44 amu. Rather than being placed adjacent to hydrogen, H, however, helium is placed on the far right of the table because. E) none of the above(no to The electrons smoothly move from one orbit to the next,It is a physical mode,The energy difference between the orbits is continuous,The electrons actually orbit around the nucleus.). were filled with nonbonded C atoms at the optimal distance apart, Assume the optimal van der Waals distance is 4A, (nucleus to nucleus) for C atoms interacting with other C atoms, and assume the prokaryotic cell is, a rod-shaped bacterium with a length of 2. All Rights Reserved. Email your Just Ask! D. When an electron wave is confined, it is reinforced only at particular frequencies. Volume off nucleus on DDE volume our datum, as we hear consider nucleus and Adam is so fears. About how many elements do you have access to as a consumer of market goods. Appendix $E$ describes a useful study aid known as concept mapping. When we breathe we inhale oxygen, O2, and exhale carbon dioxide, CO2, plus water vapor, H2O. 84) If a neutral element has the following chemical symbol, how many electrons does it have?18. As a particle? A cat strolls across your backyard. Consider these atoms: (a) copper, Cu; (b) neon, Ne; (c) hydrogen, H. The isotope 14-nitrogen has a mass of 14.003 amu , and the isotope nitrogen-15 has a mass of 15.000 amu . Most of the space in an atom is taken up by the electron cloud which surrounds the nucleus. Thermal transport simulations were performed to investigate the important factors affecting the thermal conductivity based on the structure of semi-crystalline polyetheretherketone (PEEK), and the addition of boron nitride (BN) sheets. The element bromine, Br (atomic number 35), has two major isotopes of similar abundance, both around 50%. 133) The following statement describes which subatomic particle best? 96) If an element has 10 protons and 11 neutrons and 10 electrons, which expression correctly identifies the element? A) Protons contribute more to an atom's mass while electrons contribute more to its size. Originally Answered: If the atoms that make up our body were the size of Baseballs how tall would humans be? What is the approximate mass of a carbon atom in atomic mass units (amu)? E) all of the above(Electrons are particles,Electrons behave like waves,Electrons have a negative charge,Electrons in atoms can be excited by light energy.). The nucleus is the atoms central core and contains more than 99.9 percent of its mass. The Which contributes more to an atom's size? Analytical cookies are used to understand how visitors interact with the website. If an atom were the size of a baseball stadium, the nucleus would be the size of a fly in the center field, and the electrons would be like two tiny gnats buzzing around the stadium. Assuming that all transitions between levels are possible, how many spectral lines will this atom exhibit? Why are the atomic masses listed in the periodic table not whole numbers? 12) Which of the following statements does not describe a proton? C. No, because there would be no molecules traveling to our nose. The air we exhale has more mass; Breathing causes you to lose weight. 61) When a rainbow of colors of light are combined into a single ray it forms, 62) If an atom were the size of a baseball, its nucleus would be about the size of a(n). If the energy spacing between the levels were equal, would this affect the number of spectral lines? face to drop at the front of the tank and to rise at the rear. C) Absorption of light shows particle behavior while bending of light shows wave behavior. positively charged. B) All components interact with each other. 22) The following statement describes which subatomic particle best?It has a relatively large mass. The following statement describes which subatomic particle best? What is the heat capacity rate? Referring to Problem $1,$ suppose the nucleus of the hydrogen atom were enlarge, The electron in a hydrogen atom is typically found at a distance of about 5.31, Suppose a hydrogen atom was somehow enlarged so that the nucleus is the size of, The diameter of the hydrogen nucleus is $2.5 \times 10^{-15} \mathrm{m},$ and t, Concerning the size of an atom. See so taking cute, um, more stars of the Guardian. Let this is an M days. 129,000-226,000. Oxygen, O, (number 8), sulfur, S, (number 16), and selenium, Se, (number 34) have such similar chemical properties because. a ping-pong ball. An element found in another galaxy exists as two isotopes. A) physical; conceptual; physical; conceptual. D) They are of the same age, which is appreciably older than the solar system. B) You would see a series of very sharp lines of emitted light. C) their outermost shells contain the same number of electrons. It is primarily concerned with the arrangement of electrons around the nucleus and the processes by which these arrangements change. The center would be hard and very dense, says Stephen Ekker, professor of biochemistry and molecular biology at the Mayo Clinic. Which color of light comes from a greater energy transition: red or blue? approximately the optimal van der Waals distance apart. She worked as a researcher and analyst in the biotech industry and a science editor for an educational publishing company prior to her career as a freelance writer and editor. C) The electrons on the atoms repel other electrons on other atoms when they get close. Orders of magnitude allow you to compare the approximate value of an extremely small object, such as the mass or diameter of an atom, to a much larger object. The Rutherford-Bohr model is a planetary model in which the electron is assumed to revolve around the nucleus in circular orbits. So this is a radius after, I don't know when size up the nucleus is in lust. The atomic mass of bromine is reported in the periodic table as 79.904 amu. one way to solve : size of atom = size of baseball size of atom for the course is 1a = 10 - 10 m size of nucleus x 10 - 10 m = 10 - 1 m ; then x = 10 - 6 m ( = 1 um or 1 micron ) , about the size of a bacterial cell ! Rank the three subatomic particles in order of increasing mass: (a) neutron, (b) proton, (c) electron. If a proton were added to each germanium nucleus, however, you would not want to swallow the capsule because the germanium would. C. the sum of the protons and the neutrons. An hour later, a dog with its nose to the ground follows the trail of the cat. How do we account for the great variety of substances in the world? You can specify conditions of storing and accessing cookies in your browser. Her stories have appeared in the New York Times, the Washington Post and National Geographic. So this is new radius off Nicholas, which is equal to ready yourself. D) There are many possible combinations of atoms. Size of an atom: Order of magnitude, about 0.1 nanometers, or 1x10^-10 meters A human is, order of magnitude wise, 1 meter in size. Big Picture (students dont have to state): Eukaryotic cells can hold an enormous number of. C. A carbon atom has a mass of about 12 amu. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. This is she find 65 times 10 to the power minus two meter. The size range of atoms is 1 to 5 angstroms. Which of these properties describes a metal? 51) Germanium, Ge (number 32), computer chips operate faster than silicon, Si (number 14), computer chips. A. equal to the energy of the single frequency. A) The isotope with the mass of 67 is more abundant than the isotope with the mass of 65. This cookie is set by GDPR Cookie Consent plugin. izontal, where tan $\theta=a$/$\mathrm{g}$, a being the horizontal accelera- Electrons could only move in discrete energy steps within an atom. 53) Which chemical family is composed almost entirely of man-made elements? B. 41) What does the following element description actually mean? Which of the following statements describes an isotope? In which of these two scenarios does the electromagnetic radiation behave as a wave? why granite is more suitable than marble for astatue? So taking that into account, if a nucleus would be the size of a human, then probably :- It would be 13 yds in diameter . A) The shell model is simpler and easy to understand. A.P. But, he says, it turns out to be completely wrong. Electrons are defined not by their orbit, but by their wave patterns. The cookie is used to store the user consent for the cookies in the category "Performance". B. their outermost shells contain the same number of electrons. would the nucleus be? C. elements that have some properties like metals and some like nonmetals. The molecular-level structural analysis facilitated the prediction of the thermal conductivity of the optimal structure of PEEK reflecting the best parameter . B) One electron can be boosted to many different energy levels. So now this is new radius off you call this off, hydrogen atom. Therefore, the distances between nucleus and electron also increases. But heres where it starts to get tricky. with nonbonded C atoms at the optimal distance apart, about, Assume the optimal van der Waals distance is 4A (nucleus to nucleus) for C atoms interacting with, The eukaryotic cell could be a spherical oocyte, but to make the math easier, consider the cell as a cube with a length. It does not store any personal data. If a fluorine atom were to attract an extra electron from lithium, the lithium atom would become ______________ charged.Answer: positively, Largest to smallest:- molecule, atom, proton, electron. 81) Considering how small atoms are, what are the chances that at least one of the atoms exhaled in your first breath will be in your last breath? Which contributes more to an atom s size? C) We are continually exchanging our atoms. E. Energy comes in discrete packets of a certain minimum size. The size of the hydrogen atom is about 23,000 times greater than the size of its nucleus. What can you say about the temperature changes of the hot and cold fluids in a heat exchanger if both fluids have the same capacity rate? To make things a little weirder, the electron cloud isnt an actual cloud, in which electrons can be nailed down to a physical point in space. Embrace security in tow. How would you describe light generated by heating pure elements if it was observed through a prism or spectroscope? This cookie is set by GDPR Cookie Consent plugin. an open tank. When comparing atoms to larger objects -- with a large disparity in size -- orders of magnitude show how to quantify the size differences. C. Blue is a higher frequency and therefore corresponds to a higher energy level transition. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. An element can be identified by its atomic number, or the number of protons located in its nucleus. See all Class 12 Class 11 Class 10 Class 9 Class 8 Class 7 Class 6 500 Selected Problems In Physics for JEE Main & Advanced 6) The following statement describes which subatomic particle best?It is electrically charged. 110) Which of the following could be represented by a physical model? A textbook like all material things is made up of atoms, which are considered to be 99.9 percent empty space. A) Very probable because atoms are incredibly small. What is located outside the nucleus in the electron cloud? D. The isotope with the mass of 67 is more abundant than the isotope with the mass of 65. If the abundance of the boron atom with a mass of 11 amu is 18.9 percent and the abundance of the other isotope is 81.1 percent, what would be the average mass of the boron atom? If two protons and two neutrons are removed from the nucleus of an oxygen atom, a nucleus of which element remains? What property of an electron makes it possible to use electron microscopes? 92) If an atom has 43 electrons, 56 neutrons, and 43 protons, what is its approximate atomic mass? D) No, because there would be no molecules traveling to our nose. Maja. 47) Does a shell have to contain electrons in order to exist? flea. Given the information that 92.58 percent of all lithium atoms found in nature are lithium-7 and 7.42 percent are lithium-6, calculate the atomic mass of lithium, Li (atomic number 3). Learn more about Friends of the NewsHour. Electrons, they fly around the atom, if the nucleus is a golf That is Yes, off. The mass number of an element is ________. (b) How does the pressure vary with $h$, the vertical To find the difference in the orders of magnitude, subtract the exponent -10 from the exponent -1. 78) The element bromine, Br (atomic number 35), has two major isotopes of similar abundance, both around 50 percent. The atomic mass of bromine is reported in the periodic table as 79.904 atomic mass units. raisin. 104) What happens to the properties of elements across any period of the periodic table? The atomic radius of an Iron atom is about 30,000 times the size. Yeah, good young one. How many electrons does this iron atom have? E. An electron is dropping from a higher to a lower energy level with the difference in energy between the two being emitted as light. B) It orbits around the nucleus of an atom. The beam of neutrons, however, is less harmful. To make things a little weirder, the electron cloud isnt an actual cloud, in which electrons can be nailed down to a physical point in space. Cool toe radius off. Comparing the size of an atom to objects large enough to see without a microscope requires much greater orders of magnitude. C) Look at the street lamps through a spectroscope and match their spectral patterns to their respective atomic spectra. Gaining an electron that has a negative charge would negatively Best ball time radius off Adam Upon release off Nicholas No, By blending different values here we have a star baseball equal to 3.65 times 10 to the power minus two meter radius up with a muse, 5.3 times tended a power minus 11 meter of on let yourself nucleus is 0.5 times attended a power minus 15 meter. For the hydrogen atom, if the nucleus were the size of the sun, the actual atom size (Bohr Radius) would extend about 6 times farther than the distance to Pluto. here we are given the radio self hard in a town equal to 5.3 times 10 to the power minus 11 meter. would be the size of a Baseball! B) The air we exhale has more mass; Breathing causes you to lose weight. F. 122) Which has more atoms: a 1-gram sample of carbon-12 or a 1-gram sample of carbon-13? B) a model that illustrates the tendency of an atom to undergo chemical bonding. of the nucleus is about 0.001 nm. Which of the following elements are in the same group as silicon (Si)? What is the name of this element? - Brainly.com lovensonx2946 01/20/2022 Chemistry High School answered If an atom were the size of a baseball, its nucleus would be about the size of a (n) walnut. A tennis ball has a radius of about 1.25", so it would sit Which of the following might best explain the reason why electrons are restricted to certain energy levels in an atom? Expert Answer 100% (17 ratings) Transcribed image text: The electron in a hydrogen atom is typically found at a distance of about 5.3 times 10^-11 m from the nucleus, which has a diameter of about 1.0 times 10^-15 m. Suppose the nucleus of the hydrogen atom were enlarged to the size of a baseball (diameter = 7.3 cm). The cookie is used to store the user consent for the cookies in the category "Analytics". If 80.0 percent of the atoms have an atomic mass of 80.00 atomic mass units and the other 20.0 percent have an atomic mass of 82.00 atomic mass units, what is the atomic mass of the element? These transitions would produce three spectral lines in a spectroscope. In other instances electromagnetic radiation behaves more like a particle. tion. B. an oxygen atom with 6 protons and 12 neutrons, C. a uranium atom with 92 protons and 146 neutrons, E. a hydrogen with one neutron and one proton. C. A broad spectrum of all colors would be observed. C. very probable because of how incredibly small atoms are. Answer (1 of 5): You have to understand that the nucleus infinitesimally SMALL !! Typically the nucleus contains more than 99.9% of the mass of the atom. Get 24/7 study help with the Numerade app for iOS and Android! Is the nucleus of an atom the size of a baseball? C. They are of the same age, which is appreciably older than the solar system. What is the main difference between a conceptual model and a physical model? For example, at 65 mph the car may be most quiet, but at 60 mph the car rattles uncomfortably. Where did the atoms that make up a newborn baby originate? If the average atomic mass of all the isotopes is 66.5 amu, what can be said about the relative abundance of the isotopes? 54) An element has two different isotopes: one that weighs 65 amu and another that weighs 67 amu. Nobody comparing. The neutron lacks an electrical charge. B) No. A) physical model: gold coin, car engine, virus; conceptual model: air pollution, spread of sexually transmitted disease; dollar bill, which could represent wealth, may well be described. One meter contains 1,000,000,000 nanometers. 21) Would you use a physical model or a conceptual model to describe the following: the brain; the mind; the solar system; the beginning of the universe? For heavier atoms, they would extend to about 36 times farther than Pluto. 1 Is the nucleus of an atom the size of a baseball? Smaller units, such as centimeters and millimeters, typically used to measure small objects that can fit within your hand, are still much larger than a nanometer. How are public schools especially helpful for recent immigrants. Radius of the earth: 6400 km = 6.4x10^6 meters From atom to human: About 10 orders of magnitude. As the elevator moves downward at a constant velocity, what is the direc, Question 40/1 pt 012 2 99 0 DetailsTarzan swings on a 65.7 m long vi, PainterA man of mass Mm 95 kg decides to paint his house To do this;he b, Unpolarized light with intensity 380 W /m? Thank you. Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus. Abadan! B) Electrons could only move in discrete energy steps within an atom. (A shell is just a conceptual model; hence; it doesn t really exist with or without the electron,A shell is just a region of space which may or may not contain electrons,A shell is a form of energy that requires electrons in order to exist.).
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