Question

find out the valency valence electron and write the electronic confiration of oxygen ,sodium ,sulphur​

Answer 1

Explanation:

oxygen

Atoms can either donate or receive electrons only in valence shell. 8 electrons in outermost shell is considered the most stable state of an atom as the shell will be fully occupied. ... The valency of oxygen is 2 as its electronic configuration is 2,6 and it need 2 electron to complete their octet

Sodium

Sodium has one valence electron. Valence electrons are electrons found in the outermost shell of an atom. its electronic configuration is

[Ne] 3s1

sulphur

Valency of an element is its combining capacity. So,Electronic configuration of Sulfur is 2,8,6 as its atomic number is 16. So,for sulfur to attain stability it has to gain 2 electron.

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Answer 2

Answer:

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