Question

mention the MODERN PERIODIC LAW and describe it in detail ( 100- 120 words please)

Answer 1

"the property of elements are periodic functions of their atomic number. "
in Morden periodic table elements are arranged according to their increasing atomic number. therefore the elements having the same valence electrons occur at regular intervals or period. they r thus grouped according to their properties.

the most metallic elements r those on the left side of the periodic table. as one moves towards the upper right on the periodic table elements become less Metallic in property.