Question

Can someone pls help I will mark Brainly and 10+ points

Answer 1

Don’t quote me on this but I think:
Magnesium: two valence electrons, 2 dots, 2 oxidation #
Sodium: one valence electron, one dot, +1 oxidation
Arsenic: five valence electrons, 5 dots, either -3,+3, or +5
Bromine: 7 valence electrons, 7 dots, either 1-,1*,5+
I hope this helps

Answer 2

i think that’s right, really hope it helps!:) ty for the brainliest and extra points!<3333