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Which element has : (i) two shells, bo...

Which element has :
(i) two shells, both of which are completely filled with electrons ?
(ii) the electronic configuration, 2, 8, 2.
(iii) a total of three shells, with four electrons in its valence shell ?
(iv) a total of two shells, with three electrons in its valence shell ?
(v) Twice as many electrons in its second shell as in its first shell ?

Text Solution

Verified by Experts

(a) Ne
(b) Mg
( c) Si
(d) B
(e) C
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