A-LevelChemistryChemical periodicity9701/12 · Feb/Mar 2021 · Q21 Mark
Where in the Periodic Table is the element that has an outer electron shell arrangement of 4s²4p³? Group Period A 13 3 B 13 4 C 15 3 D 15 4
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AGroup 13, Period 3
BGroup 13, Period 4
CGroup 15, Period 3
DGroup 15, Period 4
✓ Correct answer
D: Group 15, Period 4
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