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Chemistry
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ENGLISH
Chemistry
Which electronic configuration corresponds to an element of group IIIA ?
A
1s2 2s2 2p3
Option A
1s2 2s2 2p6 3s2 3p1
Correct answer
C
1s2 2s2 2p4
Option C
D
1s2 2s2 2p6 3s2 3p6 4s2 3d1
Option D
Correct answer: B
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