Question

Which of the following is not a periodic property?

• A. Atomic Mass
• B. Atomic Weight
• C. Covalent radius
• D. Electronegativity

Answer 1

The correct option is A Atomic Mass

In the periodic table, after certain regular interval some properties are repeated. These properties are known as periodic properties. Atomic mass (weighted average atomic mass of isotopes) is not a periodic property because it depends on the abundance of isotopes.
Option A is correct.