Question

if in an element 'X' there are 7 electrons present in outermost orbit then it is a
option a) metal
option b)non metal
option c)metalloid​

Answer 1

Answer:

Non metals option(b)

Explanation:

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Answer 2

$\large{\underline{\underline{\red{\tt{\purple{\leadsto } SolutioN:-}}}}}$

If the element ' X ' has seven valence electrons , then to become stable it is easier for X to gain one electron rather than loose 7 electrons . So it will gain one electron . Also we know that Non Metals have the tendency to gain electrons . So element X is a Non - Metal .

$\boxed{\green{\bf \dag Hence\:the\: Correct\: option\:is\:[b]Non - Metal.}}$

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More to Know :-

❒ If the element has 1 , 2 , 3 as their valence electrons then the element will be a metal .

❒ If the element has 4 as valence electron then it will be metaloid . Exception to this is Carbon .

❒ If the element has 5 , 6 , 7 as their valence electrons then it will be Non - Metal .

❒ If the element has 8 as valence electron then it will be a Noble gas .