Elements X and Y have electronic configurations 1s 2 2s 2 2p 4 and 1s
CHEMISTRY
JAMB 2019
Elements X and Y have electronic configurations 1s 2 2s 2 2p 4 and 1s 2 2s 2 2p 6 3s 2 3p 1 respectively. When they combine, the formula of the compound formed is
- A) XY
- B) X2Y
- C) Y2X3
- D) X2Y3
Correct Answer: C) Y2X3
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