An element X with the electronic configuratio | vedclass

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Question

(B) The electronic configuration of element $X$ is $1s^2, 2s^2 2p^6, 3s^2$.This indicates that the element has $2$ valence electrons in the $3s$ orbit

Vedclass · Accepted Answer

$XCl_2$

Vedclass · Answer

(B) The electronic configuration of element $X$ is $1s^2, 2s^2 2p^6, 3s^2$.This indicates that the element has $2$ valence electrons in the $3s$ orbital.Therefore,$X$ belongs to Group $2$ (alkaline earth metals) and typically forms a cation with a $+2$ charge $(X^{2+})$.Since the chloride ion is $Cl^-$,the formula of the chloride formed is $XCl_2$.

An element $X$ with the electronic configuration $1s^2, 2s^2 2p^6, 3s^2$ would be expected to form the chloride with the formula

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