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Grade: upto college level
        
Identify the least stable ion amongst the following
a. Li-
b. Be-
c. B-
d. C-
3 years ago

Answers : (2)

Deepak Patra
askIITians Faculty
474 Points
							

b) NOTE THIS STEP : Write configuration of all species. Half filled and full filled orbitals are more stable as compared to nearly half filled and nearly full filled orbitals.

Li = 1s2, 2s2; Be- = 1s2, 2s2, 2p1

B- = 1s2, 2s2, 2p2 ; C- = 1s2, 2s2, 2p3

? Be will be least stable. It has lowest I.E.

3 years ago
Arun Kumar
IIT Delhi
askIITians Faculty
256 Points
							Hi
Its Be- .
In chemistry you have to just remember stuff sometimes.
Thanks & Regards, Arun Kumar, Btech,IIT Delhi, Askiitians Faculty
3 years ago
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