Question

The valency of all elements in a group of the periodic table is:

• A. same
• B. different
• C. both (A) and (B)
• D. none of these

Hint:

Elements in a group exhibit the same valency but different physical and chemical properties.

Answer 1

The Correct Option is A

Elements in the same group of the periodic table have the same valency because they have the same number of valence electrons. Thus, the correct answer is \( \mathbf{(A) \text{same}} \).