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Which is a characteristic of calcium? A.It has two neutrons B.It has two energy shells C.It has two protons D.It has two electrons in its outer energy shell
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5 votes
Which is a characteristic of calcium?

A.It has two neutrons

B.It has two energy shells

C.It has two protons

D.It has two electrons in its outer energy shell

User Abhivemp
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1 Answer

6 votes
The answer is D
It has two electrons in its outer energy shell
User John Lin
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