An isotope is an element with the same number of protons, but a different number of neutrons. The same no of protons means the same no of electrons, and this means the same chemical properties. The difference in the no of neutrons means various changes in the physical properties such as density, and also the stability ( or lack of it ) of the nucleus.
Yes, isotopes of an element are the same element but with different numbers of neutrons in the nucleus and thus different atomic masses.
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.
The neutron; the proton determines the element of the atom, but different atoms of the same element can have different atomic masses, due to the different number of neutrons of the atoms. Atoms of same element having same number of protons but different number of neutrons are called Isotopes. Thus, neutron determines the isotope of an atom.
Isotopes have the same number of protons and electrons, which determine the element, but they can vary in the number of neutrons. This leads to isotopes of the same element having different atomic masses.
Isotopes are not considered isoelectronic species. Isotopes have different numbers of neutrons, while isoelectronic species have the same number of electrons. Isotopes of an element have the same number of protons but different numbers of neutrons.