Question

please answer my question i will mark as brainlist

Answer 1

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Answer 2

i)Mass:

A= 16 amu

B= 40 amu

C=40 amu

ii) Formula formed by A and B= BA (A is Oxygen and B is Calcium)

iii)Valency of B is 2 since it has 2 electrons greater than Argon, the nearest noble element...

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