Question

Which of the following properties generally shows a decreasing trend along a period?

• A. Atomic size
• B. Non-metallic character
• C. Both A and B
• D. None of these

Answer 1

The correct option is A Atomic size

As we go across a period, the effective nuclear charge increases. This pulls the electrons closer to the nucleus, thus, reducing the size of the atom.

On the other hand, non-metallic character generally increases on moving left to right across a period.

So, option A is correct.