Question

tendency to form pentahalides decreses down group 15 why

Answer 1

$\huge{Hey Mate!!!}$

☆☞ Here is ur answer ☜☆

✔✔ Nitrogen does not form pentahalide, because it does not have d-orbital. P, As, Sb form penta-halides. Bi does not form pentahalide.

✔✔ The tendency to form pentahalide decreases down the group. This is because of inert pair effect. For inert pair effect,

✔✔ ns2 electron remains inert in chemical reaction and element shows (group number -2) oxidation state.

✔✔ Inert pair effect increases down the group.

✔✔ Thus tendency to form pentahalides decreases down group 15.

HOPE IT HELPS!!!

@BinDaSSboY

Answer 2

Heya! !
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The tendency to form pentahalides decreses down group 15 because of inert pair effect.

Nitrogen(N) does not form pentahalides group.
P,As, Sb form pentahalides group.
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