Yes. An element is defined by its atomic number, the number, or the number of protons in its nucleus. When an atom has more or less neutrons it is still the same element, but a different isotope of that element.
Yes.
what is an atom of the same element with different mass numbers
when you have two different forms of an atom with different masses, it's called an isotope of the atom.
Isotopes (Pretty Sure)
Isotopes are species of atoms having same atomic no. but different atomic masses. So an isotope has either lesser or more neutrons than the usual atom of the element ( often called the most abundant isotope).
they're called isotopes.
atomic masses
They are called isotopes. They have different mass nmbers because they have a different number of neutrons.
Yes; isotopes of the same element have the same atomic number but differ in their atomic masses.
Isotopes of the same element have the same number of protons (atomic number) but differ in number of neutrons (hence atomic masses).
Masses.
Atomsof the same element that have different atomic massesare isotopes of one another.
An atom or element that have different masses are known as isotopes.
The atomic mass of an element is the weighted average of masses of the isotopes of the element, weighted in proportion to their abundance.
Isotopes. eg U235 and U238. Both Uranium, atomic number 92, bur different isotopes.
Atoms of the same element with different atomic masses are known as isotopes. Isotopes differ only by the number of neutrons present in the nucleus of the isotopes. The number of protons is the same for all isotopes of an element (because if there were different numbers of protons, then the atoms would not be of the same element).
Yes, isotopes of an element are the same element but with different numbers of neutrons in the nucleus and thus different atomic masses.
Because it is an average of the masses of the isotopes of the element, each of which has a different atomic mass (not mess!)