Periodic Table of Elements:

Periodic Table of Elements:

1- 1A; seven atoms and one gas and sex solid that sex solid call Alkali- metal. Group A par example 1A in this group all atoms have one electric on the last shell.

2- 2A: it is call alkali- earth in there is six atoms, all metal family, and all themes solid.

3- 3A: it is call boron family, there is five atoms, in there is five solid and three metal and two metalloids.

4- 4A: it is call carbon family, there are five atoms, non-gas and five solid, one non- metal, two metal and two metalloids.

5- 5A: it is call nitrogen family, there are five atoms, one-gas, four solid, two non- metals, one metal and two metalloids.

6- 6A: it is call oxygen family, there are five atoms, one-gas, four solid, three non-metals and two metalloids.

7- 7A: it is call halogen family; there are five atoms, tow-gas, one liquid, tow solid, four non- metals and one metalloid.

8- 8A: it is call noble gas; there are six atoms, six- gas and six- non- metal.

Special atoms;

1- Period six: it is call lanthanides, it starts from atom number 57 to atom number 71, there are 15 atoms and all are solids.

2- Period seven: it is calling Actinides, it starts from atom number 89 to atom number 103, there are 15 atoms and all are solids.