The formula of a salt is XCI2. The X-ion in this salt has 27 electrons. The metal X is __________.
A) Ni
B) Cu
C) Co
D) Fe
E) Zn
Correct Answer:
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Q204: The atomic number of an atom of
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Q214: An atom of 131Xe contains _ electrons.
A)131
B)185
C)77
D)123
E)54
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A)6
B)20
C)8
D)10
E)14
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A)C6H12OH
B)C6H13OH
C)C6H14OH
D)C7H13OH
E)C7H14OH
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