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An Isotope of an element is an atom that has the same number of protons, (number of protons is the defining feature of an element) but different number of neutrons.

Because The mass number is the sum of protons and neutrons, different isotopes have different mass numbers.

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What does isotopes have to do with mass numbers?

isotopes of the same element have different mass number


What do all isotopes of hydrogen have in common?

both the atomic number and the atomic mass remain the same.


What are the atomic weights of two isotopes of the element number?

both the atomic number and the atomic mass remain the same


If nuclides with the same atomic number but different mass number are called?

Isotopes


What are the atoms called then they have the same atomic number but different mass numbers?

They are called as isotopes in which mass number differ by emmision of radiation


Do isotopes have the same atomic number and the same atomic mass?

No: They have the same atomic number but not the same atomic mass.


When atoms of the same element have different mass numbers they are known as?

isotopes


What describes atoms with the same number of protons and different number of neutrons?

Isotopes describe atoms with the same number of protons and different number of neutrons. These isotopes have the same atomic number but different mass numbers, resulting in variations in atomic mass.


What are atoms that have the same number of protons but different mass number?

Atoms with the same number of protons but different mass numbers are called isotopes. Isotopes have the same atomic number but different atomic weights due to variations in the number of neutrons in the nucleus.


What do two different neutral isotopes of the same element have in common nuclear number atomic mass nuclear mass atomic number?

The atomic number is the same for all isotopes.


Which isotopes have the same mass?

The number of protons and neutrons is what determines the mass of an isotope. Even though isotopes of a particular element have the same number of protons, but a different number of neutrons, which causes their mass to be different.


How is isotope and mass number related?

2 isotopes of the same element will have the same number of protons but a different number of neutrons. The sum of protons and neutrons is the mass number, so different isotopes will have different mass numbers.