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.
Two different isotopes of the same atoms have the same number of protons and electrons; the number of neutrons is different.
Answer this question… The number of neutrons
The isotopes of molybdenum have different electron configurations.
Not; the number of protons in isotopes is identical; only the number of neutrons is different.
Two different isotopes of the same atoms have the same number of protons and electrons; the number of neutrons is different.
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Lithium-isotope 6 has 3 neutrons. Lithium-isotope 7 has 4.
Nitrogen has two stable isotopes: N-14 and N-15 and 14 radioactive isotopes.
Isotopes are atoms of the same element which differ in the number of neutrons they contain. For example, helium-3 (3He), with two protons and one neutron in each nucleus, and helium-4 (4He), with two protons and two neutrons, are two different isotopes of helium. Nearly all elements found in nature are mixtures of several different isotopes. Although the chemical properties of isotopes of the same element are the same, the physical properties differ. The natural proportions of the isotopes are expressed in the form of an abundance ratio.
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.
The atoms are isotopes of each other because they have the same number of protons, making them the same element. The differing number of neutrons results in a difference in atomic mass between the two isotopes.