Multiple Choice
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1.
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What is the name of
Ca(NO3)2?
A) | calcium nitride | B) | calcium dinitrate | C) | calcium
nitrate | D) | calcium nitrite |
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2.
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Sodium, carbon and sulfur have the symbols
A) | So, C, Su | B) | Na, C, S | C) | So, Ca,
Su | D) | Na, Cu, Su |
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3.
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The concept of a positive charge and a small, heavy nucleus surrounded by
electrons was the contribution of
A) | Dalton | B) | Rutherford | C) | Chadwick | D) | Thomson |
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4.
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The number of neutrons in an atom of 65Zn is
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5.
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An atom containing 7 protons, 8 neutrons, and 7
electrons:
A) | is charge-neutral | B) | is an anion | C) | is a
cation | D) | cannot exist |
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6.
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Which one of the following is a main-group
element?
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7.
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Mg is a member of which family?
A) | noble gases | B) | halogens | C) | alkaline earth
metals | D) | alkali metals |
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