Inert gases are the elements in which the outermost electron shells are completely filled with electrons, so they don’t participate in any chemical combination in ordinary conditions.
The covalent bond The covalent bond is a bond occurred among the atoms of nonmetals through the participation of each atom with the same number of electrons to complete the outer electron shell.
The element is composed of the molecules, Each molecule consists of the atoms, the atom is electrically neutral in its ordinary state (In the atom, the number of the electrons equals the number of...
The molecules The matter consists of very small structural units known as the molecules, The molecule is the smallest part of the matter which can exist freely, and it has the properties of the...
