Question

Elements of the same mass number but of different atomic number are known as ……….
A. Statement I is true , Statement II is true, Statement II is the correct explanation of Statement I
B. Statement I is true, Statement II is true, Statement II is not the correct explanation of Statement I
C. Statement I is true, Statement II is false
D. Statement I is false, Statement II is true

Answer 1

Correct Answer - isotope