Electronic configuration
of ferrous sulphate

It's no trouble

Explanation:

Electronic configuration of fe=1s2,2s2,2p6,3s2,3p6,4s2,3d6

e.c of fe3+=1s2,2s2, 2p6, 3s2, 3p6, 4s0, 3d5

e.c of S= 1s2,2s2, 2p6, 3s2, 3p4

e.c of s2-=1s2, 2s2, 2p6, 3s2, 3p6

Iron or Iron is the first element of the eighth group of the periodic table. This is the most attainable element in the womb and outside of the womb. This is the fourth most commonly found element in Earth's womb. It has four permanent isotopes, whose mass is 54, 56, 57 and 58.

[Ar] 3d6 4s2

im pretty sure its b

explanation:

0.07 g/cm³

1.37 g/cm³