Question

An atom has electronic configuration 2, 8, 2.what is the group of this element

Answer 1

We can find the group number by seeing its Valence Electrons there are two electrons in its valence shell therefore its group number will be 2

Answer 2

The element is Magnesium(Mg)

Atomic No.=12 (2,8,2)

Group No.=1

Period No.=3

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