klanclos886 klanclos886

08-01-2018
Chemistry

contestada

What gives elements in a family or group similar properties?
a. the same atomic mass
b. the same number of protons in their nuclei
c. the same number of electrons in their outer energy level
d. the same number of total electrons?

Respuesta :

MediocreAtBest MediocreAtBest

08-01-2018

I believe the answer is D.

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whoisroxana whoisroxana

08-01-2018

The correct answer is C.

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