Question

An atom has 5 electron in a l shell find no. Of proton no. Of neutron valency of electron valency

Answer 1

An atom has 5 electron in a l shell find no. Of proton no. Of neutron valency of electron valency.

so number of proton will be 5

Answer 2

Electronic configuration : K2 , L5

Clearly, Atomic number of atom is 7.

Hence name of element is Nitrogen

Symbol : N

Valence electron : 5

Valency : 3

No of electrons : 5+2 = 7

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