Chemistry, asked by Riddhi15102004, 1 year ago

the trivalent anion of an element has 8 electrons in its M shell. the atomic number of the element is?

Answers

Answered by sneha41046

1

its argon
Nd atomic no.is 18

Riddhi15102004: could you please explain... I doubt whether its correct or not.......no offence

Answered by aryanvijay972

1

2 in the k shell

8 in the L shell

8 in the M shell

3 in the N shell

Total 2+8+8+3=21

Riddhi15102004: thanks

Riddhi15102004: actually there are options given but the answer matches with none of them

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