Consider the following elements and their electronic configurations
W: 1s² 2s²
X: 1s² 2s² 2p6
Y: 1s² 2s² 2p6 3s²
Z: 1s² 2s² 2p6 3s² 3p².
A. W and X only
B. Y and Z only
C. W and Y only
D. W, Y and Z only
Correct Answer: Option C
C. W and Y only
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