Periodic table is a table of rearrangement of chemical elements with the basis of these properties.
In a periodic table elements are rearranged with their properties.
Periodic table consists with period and coloumn.
The horrizontal line is period and the verticle line is coloumn.
Left to right in a period atomic number increases as same as top to bottom in a group atomic number increases.
Left to right in a period atomic size decreases on the other hand top to bottom in a group atomic size increases.
Innert gas are placed in group zero.
In a period table there also exist diagonal relationship.
The electronegativity increases by top to bottom in a group and decreases left to right in a period.
Ionization energy also &ecreases top to bottom in a group and increases left to right in a period.
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