Name the following metal:
A metal present in Period $3$ , Group $1$ of the Periodic Table.

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Solution

Sodium is a metal found in group $1$ and period $3$ .
“ $N a$ ” is the chemical symbol for sodium. It has a $2, 8, 1$ electrical configuration. It belongs to group $1$ because it has one valence electron and period $3$ because it has three electronic shells filled.

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An element X belongs to 3^rd period and group 2 of the periodic table. State :

(a) number of valence electrons (b) valency (c) metal or non-metal (d) name of the element

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Name the following

A metal present in period $3$ , group $1$ of the periodic table.

Name the following metals.

(i) A metal present in cryolite other than sodium.

(ii) A metal which is unaffected by dilute or concentrated acids.

(iii) A metal present in period 3, group 1 of the periodic table.

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