Respuesta :

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
isabellae5
i think that’s right, really hope it helps!:) ty for the brainliest and extra points!<3333
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