they're called isotopes.
They are called Isotope.
when you have two different forms of an atom with different masses, it's called an isotope of the atom.
Elements are arranged in a periodic table by atomic number, lower on top and left. Atomic masses have no direct relationship to the arrangement of atoms, although generally atoms with higher atomic numbers will have higher atomic masses. (There are at least three exceptions for atoms with atomic numbers differing by 1.)
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.
what is an atom of the same element with different mass numbers
Atomic number is the number of protons in the nuclei of the atoms of an element. Each element has a unique atomic number. Mass number is the number of protons and neutrons in the nuclei of the atoms of a specific isotope of an element.
Isotopes
Different atoms and elements that have different number of protns, neutrons and electrons.Duh!
These atoms are called isotopes and they have a different number of neutrons.
They are called isotopes. eg we have different isotopes of carbon
Different atoms of the same element possessing different atomic masses but having same atomic number are known as Isotopes. Since the isotopic atoms have the same atomic number, they must contain an equal number of protons. As their atomic masses are different, there must be a difference in the number of neutrons they possess. They will show similar chemical properties but their physical properties will be different due to different masses.
Isotopes of the same element have the same number of protons (atomic number) but differ in number of neutrons (hence atomic masses).
If two atoms are isotopes, it means they have the same number of protons but different numbers of neutrons. Thus, they have the same atomic numbers, but different atomic masses.
Masses.
I think you are referring to Isotopes. They have the same atomic number but different atomic masses. This is due to differences in the numbers of neutrons.
They are called isotopes. They have different mass nmbers because they have a different number of neutrons.
An element is made up of only one type of atom. Atoms are only different from each other due to their atomic number - which is the number of protons. Different elements may have different relative atomic masses, but it is the differing number of protons in each atom that determines which element it is.
isotopes are atoms of the same element, having same atomic number but different atomic masses due to the difference in the number of neutrons presentIsotopes are atoms that have differing numbers of neutrons, but the same number of protons.