Question

2] Prepare
table showing Atomic mass of
an element, Molecular mass, electronic
configuration and valencies
[ [from Hydrogen to Calcium]​

Answer 1

Answer:

Atomic mass of an element, Molecular mass, electronic configuration and Valencies is

2,8,8,2

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Answer 2

Atomic mass of an element, Molecular mass, electronic configuration and valencies is 2, 8, 8, 2