constipatedcow18
15.07.2019 •
Chemistry
How many fluorine atoms bond with calcium to form calcium fluoride
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Ответ:
Statement (E) is correct.
Explanation:
Both mass number and atomic mass are integer. Both are unit less.
Atomic mass is approximately equal to mass number of an atom with an unit of daltons or amu or u.
Mass number = number of protons + number of neutrons
So mass number of N = 7 +7 =14
So, atomic mass of n atom = 14 daltons
Hence statement (E) is correct.