Question

Chemical properties of _______ of an element are same, but their physical properties may be different.

• A. isotopes
• B. isobars
• C. neutron
• D. proton

Answer 1

The correct option is A isotopes

Isotopes have similar chemical properties because isotopes of an element have the same number of electrons as an atom of that element. The electron arrangement is the same owing to the same chemical properties.

Hence, the correct answer is option $\text{A}$.