The electronic configuration of two atoms X and Y are as follows: X - 1s...
CHEMISTRYWAEC 1989
The electronic configuration of two atoms X and Y are as follows: X - 1s 2 2s2 2p6 3s 1, Y -1s2 2s2 2p6 3s2 3p6 4s2 which of the statements below is true of the position of X and Y in the Periodic Table?
- A. x belongs to group 1, Y belongs to period 2,
- B. x belongs to group 1, Y belongs to period 4
- C. x belongs to group 2, Y belongs to period 1
- D. x belongs to group 3, Y belongs to period 2
Correct Answer: B. x belongs to group 1, Y belongs to period 4
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