Science, asked by khanteakshay18, 7 months ago

the 8th group has valency zero or 18 group has valency zero?​

Answers

Answered by fojail2636
3

Answer:

Valency of non-metals = Number of electrons gained. ... The electrons are fully filled in the sub-shells of these elements. hence, the valency of these elements is 0. These elements belong to the last group of periodic table which is Group 18.

Answered by vishalkotwal
2

Answer:

18 group elements because all elements are stable with complete their octet and duplet in case if helium .

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