Measurement of Matter
Quick practice
Question 1 of 5
There are four atoms A, B, C and D, with electronic configuration as (2, 8, 1), (2, 8, 2), (2, 8, 6) and (2, 8, 7), respectively. Which of the above atoms form divalent anion?
A
D
B
C
C
B
D
A
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