The number of neutrons is different for each isotope.
The atomic number is the same for the all isotopes of a chemical element.
An atom or element that have different masses are known as 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).
Isotopes of the same element have different numbers of neutrons and mass.
Isotopes have the same amount of protons but a different amount of neutrons.
All isotopes of an element have the same number of protons in the atomic nucleus, which is its atomic number on the periodic table. All isotopes of an element contain different numbers of neutrons in their atomic nuclei, which causes the isotopes of an element to vary in mass number (protons + neutrons).
All neutral atoms of an element, including any of its isotopes, always do have the same number of electrons. The existence of isotopes has nothing to do with the number of electrons in an atom. Instead, the number of neutrons varies between isotopes of the same element. The number of electrons varies from that of a neutral atom only if an ion of the element is formed.
neutrons
Isotopes of the same element have different number of neutrons.
Isotopes of an element have the same number of protons but differ in the number of neutrons. This gives them the same chemical properties, but different atomic masses. Isotopes also have different physical properties, such as stability and radioactive decay rates.
All the isotopes of a chemical element have the same number of protons and electrons but the number of neutrons is different.
Isotopes are atoms of the same element that are only different by the number of neutrons they have