Question

There are 10 neutrons in the nucleus of the
elements. It belongs to -
(A) f-block
(B) s-block
(C) d-block
(D) None of these​

Answer 1

Answer:

d block

Explanation:

according to me

Answer 2

Answer:

Mass number = 19

No of neutrons = 10

No. of proton =  Atomic number

Mass number = No of proton + No of neutron

∴ No of proton =19−10=9

The element with atomic number 9 is fluorine.

The last electron goes to 2p orbital.

Hence, it is a p-block element.

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