SC-36
Atoms
Lower Sec Science · Secondary 1 · Medium · Atoms
Element X has 2 occupied electron shells. Element Y has 3 occupied electron shells. Which pair of elements must have the same number of occupied electron shells?
- Two elements from the same period
- Two elements from the same group
- Any two metals
- Any two non-metals
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.