the trivalent anion of an element has 8 electrons in its M shell. the atomic number of the element is?
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its argon
Nd atomic no.is 18
Nd atomic no.is 18
Riddhi15102004:
could you please explain... I doubt whether its correct or not.......no offence
Answered by
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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
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