An element A belongs to the third period and group 1 of the periodic table.

Find: 1.The no. of valence electrons

2.Valency

3.Metal or non-metal

4.Name the family to which this metal belongs to

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Solution

Hi,

Element which belongs to group 1 and period 3 sodium (Na).

Electronic configuration of Na is 2, 8, 1

Number of valence elctron is 1

Valency 1

Metal

Alkali metals

Regards

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