Question

3.) Deline Moderan periodic law and discuss the different
blocks in the modem periodic table.

Answer 1

Answer:

modern periodic law is is the physical and chemical properties of an element are periodic function of its atomic number.

Blocks:

wherever the valence electron is present will be defined as the block of an element.

Ex.

S block which contains two groups that is is alkali metal and Alkali metal group. with max 2 valence electron in it's last shell.

P block which contains group 13 to 18

D block that is transition elements

F block that is inner transition metals

Answer 2

Answer:

Modern periodic law states that the physical and chemical properties of elements are the periodic functions of their atomic number.

There are 18 groups and 7 periods present in the modern periodic table.

Explanation:

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