An element is a class of substances
An atom is the smallest possible piece of an element.
An isotope is an electrically charged atom.
An isotope.
When an atom of an element has a different number of neutrons.
Isotope
Each atom of an isotope of beryllium (or of another element) is different from the atoms of an other isotope. But all the atoms of an isotope are identical.
No, it becomes a different isotope. An element is defined solely by the number of protons.
Isotopes are species of atoms having same atomic no. but different atomic masses. So an isotope has either lesser or more neutrons than the usual atom of the element ( often called the most abundant isotope).
an isotope.
An isotope is an atom of an element. Isotopes are atoms of the same element that have different numbers of neutrons. However, all atoms of the same element have the same number of protons.
An isotope shares the atomic number with its element atom. How does it differ from the element atom?
An isotope is an atom that contains a different number of neutrons. In order for an element to change there has to be a different number of protons.
an isotope
This atom is called isotope.