Which among the given element has the electronic configuration of the first element of the alkali metal?

Hydrogen

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Lithium

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Boron

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Sodium

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Solution

The correct option is B
Lithium

Alkali metals are the elements in the $1^{s t}$ group of the periodic table other than Hydrogen. Lithium (Li) has the electronic configuration of the first element of the alkali metal.

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Similar questions

Electronic configuration of:
Element X: 2,8,2
Element Y: 2,8,4
Element Z: 2,8,7
Which among the given element can be beaten into sheets easily?

1 s^{2} 2 s^{2} 2 p^{6}

2, 8, 6

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{4}

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