Which of the following statement is correct about the periodic table?

A. Elements in the same period have the same number of valency electron
B. The valence electron of the elements in the same period increase progressively across the period
C. Elements in the same group have the same number of electron shells
D. The non-metallic properties of the elements tend to decrease across each period

Correct Answer:

Option B – The valence electron of the elements in the same period increase progressively across the period