Question

All the isotopes of a given atom have (1) the same mass number and the same atomic number (2) the same mass number but different atomic numbers (3) different mass numbers but the same atomic number (4) different mass numbers and different atomic numbers

Answer 1

(3) different mass numbers but the same atomic number

Step-by-step explanation:

An isotope of an atom has the same atomic number but different mass number. For example, following are the isotopes of hydrogen:

Hydrogen with atomic number 1 and mass number 1

Deuterium with atomic number 1 and mass number 2

Tritium with atomic number 1 and mass number 3.

As we can see the atomic number is the same in each case while mass number changes. So option 3 is the correct option.

Answer 2

Answer:(3)

Step-by-step explanation:

All isotopes of a given atom has different mass numbers but the same atomic number