The isotopes of an element must have a different amount of neutrons.
I'm pretty sure you know what these are, but just in case:
A neutron is a sub-atomic part of an atom, together with protons and electrons.
Different isotopes have different numbers of neutrons and thus different atomic masses.
Different number of neutrons in each atom.
Isotopes of elements have differing numbers of neutrons.
Isotopes of element have different mass number{proton and neutron} but the same atomic number{proton number}.
Neutrons.
Neutrons
Atomic Masses
Mass
Isotopes have a different number of neutrons.
An atom or element that have different masses are known as isotopes.
The isotopes have different masses.
The atoms of a chemical element can exist in different types. These are called isotopes. They have the same number of protons (and electrons), but different numbers of neutrons. Different isotopes of the same element have different masses.
elements are isotopes, when different atoms of the same element have different number of neutrons
what are the names of 15 different isotopes
Isotopes have a different number of neutrons.
neutrons
An atom or element that have different masses are known as isotopes.
The isotopes have different masses.
The atoms of a chemical element can exist in different types. These are called isotopes. They have the same number of protons (and electrons), but different numbers of neutrons. Different isotopes of the same element have different masses.
Isotopes of the same element have different numbers of neutrons and mass.
elements are isotopes, when different atoms of the same element have different number of neutrons
Isotopes of an element have different masses because their nuclei have different numbers of neutrons.
Isotopes. They differ in the number of neutrons in the nucleus.
Isotopes have a different number of neutrons.
Isotopes have different number of neutrons.