Biology, asked by mehtakavita303, 5 months ago

Find the valency of 4/2he and 14/7n

Answers

Answered by yashvisoni112233
19

Answer:

he=o as its a noble gas and has completed its duplet

and n= -3

as its electronic configuration is

n=2,5

so to complete its octate it needs 3 more electron. so it will take 3 electrons and get the negative-3 charge.

Answered by SteffiPaul
1

The valency of ⁴₂He and ¹⁴₇N are 0 and -3 respectively.

  • The valency is defined as the combining capacity of an atom to complete its octet and attain the noble gas configuration.
  • The He atom is a noble gas. Its electronic configuration is 2.
  • He has completed its duplet.
  • It does not require any electron to attain a stable configuration as it already has a stable electronic configuration, so the valency of He is 0.
  • The electronic configuration of N is 2,5.
  • It requires 3 more electrons to attain a noble gas stable electronic configuration.
  • It will gain 3 electrons so the charge will be -3, so the valency of N is -3.

Hence, the valency of ⁴₂He and ¹⁴₇N are 0 and -3 respectively.

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