an alkaline earth metal in period 2 Express your answer as a chemical symbol. group 5A...

Question

Question

an alkaline earth metal in period 2 Express your answer as a chemical symbol.

group 5A (15), period 3 Express your answer as a chemical symbol.

a noble gas in period 3 Express your answer as a chemical symbol.

a halogen in period 3 Express your answer as a chemical symbol.

group 4A (14), period 4 Express your answer as a chemical symbol.

Answer 1

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