Atomic Model - 无忧得胜-网上国际课程 (5edu.win)

1#

94.09: An atomic mass uni:j)* ,asj + os)uolfewt is approximately 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 fame6a1*pgqhf w8zm.6 rgous gold foil scattering experiment, he found that most alpha particles would pas6farpgq.m 8 weh16 *gzs through the foil undeflected. Which of the following nuclear properties can be inferred from this 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 an aluminum nail has a d1 / h2+3ez8egrb 4lm khfxf8bkiameter of 1.00 cm. For the top layer of atoms in the nail’s head, which one of the followzh8+ 8keghmbf 13b4fxr/lk2eing choices 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 atoms0go g9k5s x+y+xdnc;6 gu/ ebd*d4miy are there in the liquid water of Ear se9k*xib+xd+ ymg4do cdgg y /06un;5th’s oceans?

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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 makerlfo4tp2f67 q -up of a proton 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 was the 85q(t zr; q;bog pz6c8 b8ikwglast to be confirmed experiment8tq ibqg;or gcb;8 (w56z8 kpzally?

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