It is because that they have a different number of protons and neutrons and electrons.
They have a different number of electrons and protons
No. Neon atoms and Argon atoms have different atomic numbers. Which means they have different numbers of protons.
If they have the same atomic number but different mass, then they have a different number of neutrons, and they are called ISOTOPES.
Atoms of the same element with different atomic masses are known as isotopes. Isotopes differ only by the number of neutrons present in the nucleus of the isotopes. The number of protons is the same for all isotopes of an element (because if there were different numbers of protons, then the atoms would not be of the same element).
Isotopes of the same element have the same number of protons (atomic number) but differ in number of neutrons (hence atomic masses).
The Proton number defines the element, so there cannot be two atoms of the same element with different proton numbers, because they will be, by definition, different elements. Neutron numbers can differ though. When one element has different neutron configurations, these are called Isotopes.
The number of protons is different.
Yes; isotopes of the same element have the same atomic number but differ in their atomic masses.
No. Neon atoms and Argon atoms have different atomic numbers. Which means they have different numbers of protons.
If two atoms are isotopes, it means they have the same number of protons but different numbers of neutrons. Thus, they have the same atomic numbers, but different atomic masses.
Different atomic numbers represent different elements.
They are called as isotopes in which mass number differ by emmision of radiation
No. The atomic number of an element is determined by its number of protons. If two atoms have different numbers of protons, they have different atomic numbers and are different elements.
They have different numbers of neutrons.
Yes. Isotopes have the same atomic number because all of their atoms have the same number of protons. They have different mass numbers because their atoms have different numbers of neutrons, and mass number is the sum of the numbers of protons and neutrons.
YES. The very definition of isotopes are atoms of the same element with the same number of proton (same atomic number) but different numbers of neutrons, therefore different mass numbers.
If they have the same atomic number but different mass, then they have a different number of neutrons, and they are called ISOTOPES.
they are called isotopes.