Q. If the electronic configuration of elements A and B are 1S2, 2S2 2P6, 3S1 and 1S2, 2S2 2P6, 3S2 3P4 respectively, then the formula of the compound formed by the combination of these elements will be:
A) AB2
B) AB3
C) AB
D) A2B
✔ Correct Answer: A2B
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