Tagged: The elements

covalent bonds 0

What are the types of covalent bonds?

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 modern periodic table 0

The description of the modern periodic table

Modern periodic table The modern periodic table consists of 7 horizontal periods and 16 vertical groups (18 vertical columns). The elements of the modern periodic table are classified into 4 blocks (s, p, d,...

Water molecule 0

Importance of the water and its structure

The importance of the water There are no living organisms that can live without water as it is the medium through which all the vital processes take place, The water in the oceans and...