Integrated Science
7th Edition
ISBN: 9780077862602
Author: Tillery, Bill W.
Publisher: Mcgraw-hill,
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Chapter 8, Problem 2CQ
To determine
The experimental evidence that led Rutherford to the concept of a nucleus in an atom.
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Students have asked these similar questions
Explain the structure of the atom in general.
(a) After J. J. Thompson experimentally discovered the existence of electrons in 1897, he
went on to propose the plum pudding model of matter. What was the plum pudding model?
What did Ernest Rutherford conclude about the structure of matter based on his experimental
results from bombarding gold foil with alpha particles? (b) What was the proposed atomic
model of matter put forward by Rutherford? Theoretically what was the problem with his
proposed model of the atom? (c) What was the modification made by Niels Bohr to
Rutherford's model, i.e., what were the assumptions that Bohr made for his version of the
atomic model of matter? (d) What observational phenomena was Bohr's proposed model able
to explain? How did his model explain these phenomena? (e) Draw an energy level diagram
with one representative transition to support your answer to part (d).
Rutherford found the size of the nucleus to be about 10-15 m. This implied a huge density. What would this density be in kg/m3 for gold? (Assume that the "size" of the nucleus is its diameter.)
kg/m3
Chapter 8 Solutions
Integrated Science
Ch. 8.1 - Prob. 1SCCh. 8.1 - Prob. 2SCCh. 8.1 - Prob. 3SCCh. 8.1 - Prob. 4SCCh. 8.1 - Prob. 5SCCh. 8.1 - Prob. 6SCCh. 8.2 - Prob. 7SCCh. 8.2 - Prob. 8SCCh. 8.2 - Prob. 9SCCh. 8.3 - Prob. 10SC
Ch. 8.3 - Prob. 11SCCh. 8.3 - Prob. 12SCCh. 8.5 - Prob. 13SCCh. 8.5 - Prob. 14SCCh. 8 - Prob. 1CQCh. 8 - Prob. 2CQCh. 8 - Prob. 3CQCh. 8 - Prob. 4CQCh. 8 - Prob. 5CQCh. 8 - Prob. 6CQCh. 8 - Prob. 7CQCh. 8 - Prob. 8CQCh. 8 - Prob. 9CQCh. 8 - Prob. 10CQCh. 8 - Prob. 11CQCh. 8 - Prob. 12CQCh. 8 - Prob. 13CQCh. 8 - Prob. 14CQCh. 8 - Prob. 15CQCh. 8 - Prob. 16CQCh. 8 - Prob. 17CQCh. 8 - Prob. 18CQCh. 8 - Prob. 1PEACh. 8 - Prob. 2PEACh. 8 - Prob. 3PEACh. 8 - Prob. 4PEACh. 8 - Prob. 1PEBCh. 8 - Prob. 2PEBCh. 8 - Prob. 3PEBCh. 8 - If the charge-to-mass ratio of a proton is 9.58 ...
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- (a) An aspiring physicist wants to build a scale model of a hydrogen atom for her science fair project. If the atom is 1.00 m in diameter, how big should she try to make the nucleus? (b) How easy will this be to do?arrow_forwardExplain how a hydrogen atom in the ground state (l = 0) can interact magnetically with an external magnetic field.arrow_forwardIn the planetary model of the atom where electrons orbit a centralized nucleus, what is the approximate ratio of the radius of the nucleus to that of the electron orbits?arrow_forward
- One of the most ground-breaking experiment in the history of the atom was performed by Ernest Rutherford, a physicist who’s proposed the nuclear model of the atom. Within 100 words and with the aid of a schematic diagram, describe the unprecedented work done by Rutherford.arrow_forwardQUESTION 19 In 1911, when Rutherford observed alpha particles being scattered at back angles from a gold foil, he reached the conclusion that alpha particles are helium nuclei. alpha particles are very tightly bound. the plum-pudding model of the atom must be wrong . gold has a much higher atomic number than previously thought.arrow_forwardUsing the Bohr formulas, estimate the average distance from the nucleus for an electron in the innermost (n=1) orbit in uranium (Z = 92). What is its kinetic energy and potential energy? Approximately how much energy would be required to remove it? PLEASE draw the diagram/situationarrow_forward
- How many electrons does an element given as 24 X 50 have? How many neutrons? What is the net electric charge of the element?arrow_forwardThe electron in the hydrogen atom (in its ground state) orbits the nucleus at a distance of 0.5292 Å. (a) Calculate the gravitational force and (b) the electrostatic force of attraction between the two. (c) Comment on the magnitude and the importance of these two forces. [G, gravitational constant = 6.672 x 10-11 N m2 kg-2; 4πЄo = 1.113 x 10-10 C2 m-1 J-1]arrow_forwardHow does the wave model of electrons orbiting the nucleus account for the fact that the electrons can have only discrete energy values? Question options: The wave model accounts for the types of orbitals an electron may occupy, not it's energy levels. Electrons are only able to vibrate at particular frequencies. The energy values of an electron only occur where its wave properties and probability clouds are mutually reinforcing. When an electron wave is confined as standing wave, it is reinforced only at particular frequencies.arrow_forward
- Prove using the uncertainty principle that an electron cannot exist inside a nucleus.arrow_forwardUse the below values for this problem. Please note that the mass for H is for the entire atom (proton & electron). Neutron: m = 1.67493x10-27 kg = 1.008665 u = 939.57 MeV/c² . ¹H: mH = 1.67353x10-27 kg = 1.007825 u = 938.78 MeV/c² 1 1 u = 1.6605x10-27 kg = 931.5 MeV/c² . Consider the following decay: 239 Pu 235 U+ a. 239 Pu has a mass of 239.0521634 u, 235 U has a mass of 235.0439299 u, and a has a mass of 4.002603 u. 94 92 94 92 Determine the disintegration energy (Q-value) in MeV. Q = Determine the binding energy (in MeV) for 239 Pu. 94 EB =arrow_forwardWhat if Rutherford had not known about Thomson’s work? How might Rutherford’s model of the atom have been different?arrow_forward
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