Because of the difference in mass number. Isotopes must have different numbers of neutrons.
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 are atoms of the same elements with different number of neutrons.
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.
No, some elements (Ac, Th, Pa, Rn, U, Th, etc.) and many other isotopes are natural elements or isotopes.
No, isotopes of light elements exist as well. For example, there are several isotopes of the lightest element, hydrogen.No, even the lightest element (hydrogen (H)) has isotopes. These are called Deuterium and Tritium.All elements have isotopes but some of them are very unstable and have disappeared in nature over time.
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.
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.
No most of them are not isotopes. Few elements exist as isotopes.
element vs isotopes
Isotopes are atoms of the same elements with different number of neutrons.
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.
Many elements have different isotopes: 1) Carbon - Carbon 12, Carbon 14 2) Hydrogen - Protium, Deuterium, Tritium 3) Chlorine - Chlorine 35, Chlorine 37 etc
Caesium and Xenon, with 36 isotopes each
isotopes
Not all of the transition elements are radioactive. Many of them are, and some of them have common radioactive isotopes, but some of them have no naturally occurring radioactive isotopes. Please note that all elements have synthetic radioactive isotopes, at least.
No, some elements (Ac, Th, Pa, Rn, U, Th, etc.) and many other isotopes are natural elements or isotopes.
The number of elements is more than the number of isotopes. There are 118 known elements on the periodic table, while each element can have multiple isotopes with varying numbers of neutrons. The number of isotopes per element can range from a few to dozens, depending on the element.