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inert gases

Valency

Last Updated on March 9, 2021 By Mrs Shilpi Nagpal

Question 1 Define atomic number? Question 2 Define mass number? Question 3 Define valency? Question 4 What are valence electrons? Question 5 What are noble gases? Question 6 An element has atomic number 12.How many electrons are present in K,L,M shell? Question 7 Write the distribution of electrons in an atom of element whose atomic number is 18? Atomic … [Read more...] about Valency

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