Isotopes have different numbers of neutrons.
Atoms of different elements are different because they have different numbers of protons in their nuclei. Protons carry a positive charge and determine the element's identity.
The Proton number defines the element, so there cannot be two atoms of the same element with different proton numbers, because they will be, by definition, different elements. Neutron numbers can differ though. When one element has different neutron configurations, these are called Isotopes.
They are known as allotropes, for example, the allotropes of carbon are graphite and diamond.
Its the average of the weight of the different isotopes of that element.
Isotopes, which are atoms of the same element with different numbers of neutrons.
Different elements have different numbers of protons. The number of protons identifies the element.
Isotopes of the same element have different numbers of neutrons and mass.
neutrons
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! ^_^
The different isotopes have different atomic mass numbers, because the isotope has different numbers of neutrons. The protons and electrons are the same, so the change in mass number is the same as the change in the number of neutrons.
Every element can have different mass numbers; these reflect the number of neutrons in the atom in addition to the protons that determine which element it is.
Two atoms of the same element can have different masses if they contain different numbers of neutrons. These are known as isotopes of the element. Isotopes have the same number of protons and electrons, but differing numbers of neutrons, which can slightly alter their atomic mass.