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Isotopesare variants of atoms of a particular chemical element, which have differing numbers of neutrons. Atoms of a particular element by definition must contain the same number of protons but may have a distinct number of neutrons which differs from atom to atom, without changing the designation of the atom as a particular element.
neutrons
Sum of protons and neutrons is the Mass number of the element. The number of protons is equal to the number of electrons. Neutrons and protons are sub atomic particles.
The mass number is the sum of protons + neutrons.
Isotopes of the same element differ in the number of neutrons. Isotopes have different physical properties but similar chemical properties.
An isotope
This atom is called isotope.
the atom is an isotope
Atoms of the same element with varying numbers of neutrons are isotopes.
Neutrons
an isotope
Is called an Isotope.
One element differs from another element by the number of protons in their atoms. The number of protons in the atom is known as the atomic number. Also one isotope of an element differs from another isotope of the same element by the number of neutrons in their atoms.
Chemical reactions involve electrons - not protons or neutrons. All isotopes of the same element have an identical number of electrons (just the number of neutrons differs) and hence the chemical properties are identical/very similar.
Isotopesare variants of atoms of a particular chemical element, which have differing numbers of neutrons. Atoms of a particular element by definition must contain the same number of protons but may have a distinct number of neutrons which differs from atom to atom, without changing the designation of the atom as a particular element.
isotope
Number of Neutrons = Mass number - Number of Protons