Question

From the given set of species, point out the species
from each set having least atomic radius:-
(a) 0-9 F - Nat (b) Ni, Cu, Zn
(c) Li, Be, Mg (d) He, Lit, H-
Correct answer is :-​

Answer 1

Answer:

From the given set of species, point out the species from each set having least atomic radius.

(

a

)

O

2

−

,

F

−

,

N

a

+

(

b

)

N

i

,

C

u

,

Z

n

(

c

)

L

i

,

B

e

,

M

g

(

d

)

H

e

,

L

i

+

,

H

−

A

O

2

−

,

C

u

,

L

i

,

H

−

B

N

a

+

N

i

,

B

e

,

L

i

+

C

F

−

,

Z

n

,

M

g

,

H

e

D

N

a

+

,

C

u

,

B

e

,

H

e

Solution

The atomic radius is lower due to high effective nuclear charge (due to poor shielding by inner electrons).

In the group (a),

N

a

+

has least atomic radius.

In the group (b),

N

i

has least atomic radius.

In the group (c),

B

e

has least atomic radius.

In the group (d),

L

i

+

has least atomic radius.

Hence option

B

is correct.

Explanation:

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