Science, asked by akganjia, 11 months ago

an atom has mass number 40 and atomic number 20 write the name of the element and its valency

Answers

Answered by tushar0007

0

The element is Calcium.
It's valency is 2.

Answered by manthan7445

0

Atomic Number = 20

The name of elenent is Calcium

It valency is +2

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