Question

Choose incorrect statements about isotopes.

• A. Isotopes have same number of electrons
• B. Isotopes have same number of neutrons
• C. Isotopes have same no of protons
  
• D. Isotopes have same chemical properties
  

Answer 1

The correct option is B Isotopes have same number of neutrons

Isotopes have the same number of protons but a different number of neutrons.

Eg- $C_6^{12}{C}_6^{13}$ are isotopes of carbon

Isobars have the same mass number but a different number of protons.

Eg- $C_6^{12}{C}_5^{12}$ are isobars