Arrange the elements given in order from largest to smallest atomic radii.

Question

Question

Answer 1

Answer #1

Among the given elements,

Atomic radius of Potassium = 235 pm

Atomic radium of Argon = 71 pm

Atomic radius of Sodium = 186 pm

Atomic radius of Neon = 38 pm

Atomic radius of Phosporous = 98 pm

Here pm = picometre

As we know, down the group atomic radii increases and along the column, from left to right size decreases.

So Potassium has the largest atomic radii here.

So the correct order of decreasing atomic radii is

K > Na > P > Ar > Ne

Option e is correct.

Answer 2

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