It's called an isotope.
neutrons
Isotopes, which are atoms of the same element with different numbers of neutrons.
The number of neutrons differ for each isotope of a chemical element.
Two different isotopes of an element have different numbers of neutrons. That's what an isotope is. So, no, isotopes of an element can not have the same number of neutrons.
Atoms of the same element can have different numbers of neutrons; the different possible versions of each element are called isotopes. For example, the most common isotope of hydrogen has no neutrons at all; there's also a hydrogen isotope called deuterium, with one neutron, and another, tritium, with two neutrons.
Isotopes are atoms of the same element that have different numbers of neutrons in their nuclei. This leads to variations in atomic mass for isotopes of the same element.
Different number of neutrons in isotopes.
Isotopes of the same element have different numbers of neutrons and mass.
Isotopes
Isotopes are different atoms of the same element with the same number of protons (proton number) but different in number of neutrons. Given that nucleon number is equal to the sum of proton and neutrons in the nucleus of an atom, isotopes have different nucleon number due to difference in number of neutrons.
They have different numbers of neutrons.
Isotopes have different numbers of neutrons.