Question

what Does the mendeleev periodic law ? how many periods and group . Explain and State the electronic configuration any 10 compounds . Briefly ​

Answer 1

Answer:

Explanation:

There are two types of laws.

One is modern and other is mendeleev periodic law.

Modern periodic law consists of 63 elements.

It has 18 groups and 7 periods.

Electronic shells depicts the number of periods. And the last shell depicts the group number.

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Answer 2

Answer:

Hope it will help you.....

Explanation:

the law that the properties of the elements are periodic functions of their atomic numbers. Also called Mendeleev's law. (originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.

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

Electronic shells depicts the number of periods. And the last shell depicts the group number.