Tagged: Atomic number

The atom 0

The atomic structure of the matter

The atom The atom is the fundamental building unit of the matter , and it is the smallest individual unit of the matter which can share in the chemical reactions , Boyle , Thomas...

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...