element vs isotopes
Isotopes are forms of the same element that differ in Neutrons.
I'll try to answer what I think you were trying to ask.Different elements are different substances. Technically, different isotopes are different substances as well, but in practice the chemical differences between two isotopes of the same material are much smaller than the differences between two different elements.All elements (and nearly all compounds) undergo state changes.
All the isotopes of a chemical element are identical; some differences exist for light elements (ex. H or D).
A difference of chemical properties is observed for light elements; for other elements these differences are extremely small.
The separation of isotopes is relatively easy for light elements as hydrogen, lithium, nitrogen etc. For elements with higher atomic weight and a small difference between the atomic masses of the isotopes the process is long and expensive. The insignificant differences between these isotopes doesn't facilitate the separation.
Different elements have between 0 and 10 naturally occurring isotopes, and between about 3 and 25 if you also include artificially prepared and characterized ones.
scientists Can tell the difference between two isotopes of the same element because, isotopes of the same elements always have the same number of protons.
Elements with no stable isotopes are called radioactive elements. These elements spontaneously undergo radioactive decay, which leads to the formation of stable isotopes over time.
Isotopes of an element have the same number of protons but different numbers of neutrons. This results in differences in atomic mass and stability. Isotopes may have different physical properties, such as melting point and boiling point, as well as different chemical behaviors.
All of the isotopes in an element's atomic masses divided by the amount of isotopes there are is the weighted-average mass of the mixture of an elements isotopes.
Yes, the differences in properties between diamond and graphite can be explained by the existence of isotopes. Isotopes are atoms of the same element with different numbers of neutrons, which can affect the atomic structure and bonding in materials. In the case of diamond and graphite, the arrangement of carbon atoms and the bonding configuration due to isotopes lead to their distinct properties.
Differences between uranium isotopes: natural isotopes (U-234, U-235, U-238) and the artificial isotopes; differences in atomic mass; differences in the number of neutrons; differences of the half life; differences in the emitted radiations (type, energy, percentage); differences in the decay chain; differences in the technological importance; etc.