Question

An atom has and electrons.
Choose the correct statement(s) regarding it.
A. Trivalent anion of this atom will have protons in its nucleus.
B. Trivalent cation of this atom will have six p-electrons in it.
C. This atom form an amphoteric oxide of formula .
D. One of its allotrope is tetra atomic

A

and

B

only

C

and

D

and

Hard

Solution

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Correct option is
D

and

In given atom the structure is, K(2) L(8) M(5)

Configuration will be:

So, it will be trivalent metal cation.

So, p electrons will be 6.

As per the configuration, this element is the phosphorous (atomic number 15). It exists as allotrope in tetra atomic i.e.  format.

The correct option is D. 

Solve any question of The p-Block Elements with:-

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