Atomic Model - 无忧得胜-网上国际课程 (5edu.win)

1#

94.09: An atomic mass unit is approximate046cxagas;ft kw d/l :e2exj9 ly equal to the mass of a(n):

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

02.10: In Rutherford's famous gold foil scatte2+hm( wzc/k qjring experiment, he found that most alpha particles would pass through the foil undeflected. Which of the following nuclear properties can be inferred from thiqw2 jc h+mz(/ks observation?

A. The nucleus must have a positive charge

B. Most of the mass of an atom is in the nucleus

C. The nucleus contains both protons and neutrons

D. The diameter of the nucleus is small compared to the diameter of the atom

E. None of the above

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

12.37: The cylindrical head of ate-nx.r+.; n pj+j7bljvk jg7 n aluminum nail has a diameter of 1.00 cm. For the top layer of atoms in the nail’s head, which one of the following choicesnr.k. jlv7x-pe; t+7+bn jgjj best represents the number of aluminum atoms in that layer?

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.31: Approximately how many hydrogen atoms axhn:u- n9l 7. rfd4qmvre there in the liquid water of Earth’s ou :-4r7m dvln.9fxnhqceans?

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

06.47: The sub-atomic make-up of a prote :26atg))c h vz ego2mtzf)/uon is

A. 2 up quarks and a down quark

B. 2 down quarks and an up quark

C. 1 up quark, 1 down quark, and 1 top quark

D. 1 up quark, 1 strange quark, and 1 bottom quark

E. 2 strange quarks and 1 charmed quark

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

13.46: Which one of the following quarks d3 wxx1x)i w5iwas the last to be confirmed experimenti)5w dx1xi 3xwally?

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