aladdinKhalil74 aladdinKhalil74

23-06-2016
Chemistry

contestada

Which group of elements are considered to be in the same family?
A. helium, neon and argon
B. potassium, calcium and scandium
C. manganese, iron and cobalt
D. hydrogen and helium

Respuesta :

amiraUAE amiraUAE

25-06-2016

A. helium, neon and argon, because they are in the same group or column

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