Question

no of neutrons formula
no of protons formula
atomic mass formula
atomic number formula
valency formula
valence electrons formula​

Answer 1

Explanation:

Number of neutrons = Atomic number

Number of proton = Atomic number

Answer 2

no of neutrons formula -Z + N = A.

no of protons formula - atomic (M)

atomic mass formula - multiplying by 1 amu

atomic number formula - Z = 19 and A = 39

valency formula - compounds with electrons four, five, six, or seven.

valence electrons formula - 2⋅1+1⋅6=8 valence electroncs.

2⋅1+1⋅6+4⋅6=32e−