(a) State the modern periodic law.

(b) How many periods and groups are there in the modern periodic table?

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Solution

a. Modern periodic law: The physical and chemical properties of all elements are a periodic function of their atomic numbers.
b. Eighteen groups and seven periods

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Similar questions

Q. How many periods and groups are there in the modern periodic table?

Q. In how many groups and periods the elements in modern periodic table are classified?

How many groups and periods are there in the modern periodic table? How do the atomic size and metallic character of elements vary as we move:

(a) down a group and
(b) from left to right in a period

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(a) State the modern periodic law. (b) How many periods and groups are there in the modern periodic table?

a. Modern periodic law: The physical and chemical properties of all elements are a periodic function of their atomic numbers. b. Eighteen groups and seven periods

(a) State the modern periodic law.

(b) How many periods and groups are there in the modern periodic table?

a. Modern periodic law: The physical and chemical properties of all elements are a periodic function of their atomic numbers.
b. Eighteen groups and seven periods