Question

Atomic no of an element is 16 and atomic mass is 32. give its valency, no of electrons, no of protons, and neutrons
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Answer 1

no. of protons = atomic no. = 16

no. of electrons = no. of protons = 16

no. of neutrons = mass number - atomic no.

= 32 - 16

= 16

electronic configuration of elements : 2, 8, 6

so, valency = 8 - no. of valence electrons

= 8 - 6

= 2