Isotopes are forms of the same element that differ in Neutrons.
element vs isotopes
Isotopes are atoms of the same elements with different number of neutrons.
When two elements have the same atomic number, it means they are isotopes of each other. Isotopes have the same number of protons but different numbers of neutrons in their nuclei. This results in subtle differences in their atomic mass and stability.
Isotopes of elements are atoms with the same number of protons but different numbers of neutrons. This causes isotopes of the same element to have different atomic masses. Isotopes can be stable or unstable, with unstable isotopes undergoing radioactive decay.
Since you have isotopes of elements. Isotopes are elements with different number of neutrons hence why the different atomic masses for the same elements.
The isotopes of the same element have an identical number of protons and electrons; the number of neutrons is different.
Neutrons
neutrons
elements are isotopes, when different atoms of the same element have different number of neutrons
All the isotopes of a chemical element are identical; some differences exist for light elements (ex. H or D).
The answer you are looking for is "isotopes" HOWEVER, please note you CAN NOT HAVE 2 elements with the same number of PROTONS. This is because the number of protons DEFINES an element. Isotopes are the SAME element but with differing numbers of neutrons.
All isotopes of an element have the same chemical properties and can form the same compounds because they have the same number of protons and electrons. This means they share the same electronic configuration, which governs how atoms interact and bond with other elements. The differences in neutron numbers among isotopes affect the atomic mass but do not significantly alter their chemical behavior. Therefore, isotopes of an element can participate in identical chemical reactions and form the same compounds.