Which has more non - metallic character from the elements 'X ' an… - Vidyadip

MCQ

Which has more non $-$ metallic character from the elements $'X\ '$ and $'Y\ ',$ with electronic configurations $2,8,5$ and $2,8,6$ respectively?

A
$X$
✓
$Y$
C
Both have same non $-$ metallic character.
D
None of the above.

✓

Answer

Correct option: B.

$Y$

As we move from left to right across a period, the non $-$ metallic character increases.
Here, $X$ has atomic number $15,$ so, the element is Phosphorous.
$Y$ has atomic number $16,$ so, the element is Sulphur.
As sulphur is present more to the right of the table, so according to the general trend it is more non $-$ metallic.
So, $Y$ has more non $-$ metallic character.

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