Neutrons.
neutrons
Isotopes of the same element have different numbers of neutrons and mass.
Isotopes are atoms of the same element that have different numbers of neutrons. Different isotopes of an element have the same atomic number, but different mass numbers. I hope I helped! ^_^
Atoms have isotopes: it is true, the isotopes of the same element have different number of neutrons.
Atoms are considered to be of the same element if they have the same number of protons. If their atoms have a different number of NEUTRONS, they are known as ISOTOPES of the same 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.
Isotopes of the same element have different numbers of neutrons.
isotopes of the same element have different mass number
Atoms of all isotopes of a single element have the same number of protons in their nuclei but have different numbers of neutrons if they have different mass numbers.
Isotopes are atoms of an element having different number of electrons.
Yes; isotopes of the same element have the same atomic number but differ in their atomic masses.
Its the average of the weight of the different isotopes of that element.