Chemistry
Medium
Question
Which electronic configuration corresponds to an element of group IIIA ?
A
1s2 2s2 2p3
B
1s2 2s2 2p6 3s2 3p1
✓ Official correct answer
C
1s2 2s2 2p4
D
1s2 2s2 2p6 3s2 3p6 4s2 3d1
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A
1s2 2s2 2p3
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B
1s2 2s2 2p6 3s2 3p1
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C
1s2 2s2 2p4
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D
1s2 2s2 2p6 3s2 3p6 4s2 3d1
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