An element has $2$ electrons in its $N$ shell,
(ii) state its position in the periodic table.

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Solution

The configuration of elements having $2$ electrons in their $N$ shell can be written as shown below.

Shells K L M N

Electrons present in each shell 2 8 8 2

The element has $2$ valence electrons and $4$ shells. Thus it is placed in group $2$ and period $4$ of the periodic table.

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An element has 2 electrons in its N shell, (ii) state its position in the periodic table.

The configuration of elements having 2 electrons in their N shell can be written as shown below. Shells K L M N Electrons present in each shell 2 8 8 2 The element has 2 valence electrons and 4 shells. Thus it is placed in group 2 and period 4 of the periodic table.

An element has $2$ electrons in its $N$ shell,
(ii) state its position in the periodic table.

The configuration of elements having $2$ electrons in their $N$ shell can be written as shown below.

Shells K L M N

Electrons present in each shell 2 8 8 2

The element has $2$ valence electrons and $4$ shells. Thus it is placed in group $2$ and period $4$ of the periodic table.