Category: The Matter

Acids 0

The types and properties of the acides




Types of the compounds There are countless number of existing compounds , they can be classified according to their properties only into the acides , the bases ( alkalis ) , the oxides and...




The inert gases 0

The properties of the noble ( inert ) gases




The inert gases are the elements in which the outermost electron shells are completely filled with the electrons , so they don’t participate in any chemical combination in the ordinary conditions .




Covalent bond 0

What are the types of the covalent bond ?




The covalent bond The covalent bond is a bond occurred among the atoms of nonmetals through the particopation of each atom with the same number of electrons to complete the outer electron shell .




Ionic bond 0

What is the ionic bond ?




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...