Consider the following elements and their electronic configurations
W: 1s²2s²
X: 1s ²2s²2p⁶
Y: 1s²2s²2p⁶3s²
Z: 1s²2s²2p⁶3s²3p². Which of the elements belong to the same group in the periodic table?

abdulmaleek22

2 years ago

w (2,2) x(2,8) y(2,8,2) z(2,8,4)
w and y have same valency i.e 2. option C is correct

Joywwe

3 years ago

Yes they most have same valence electrons looking at w and y they have but that of z does not

Mercyebube

4 years ago

The answer is wrong. Because for elements to belong to the same group they must have the same number of valence electrons. So the correct ans is D