Question

The basis of Modern periodic table is

• A. Atomic volume.
• B. Atomic number
• C. Atomic weight
• D. Atomic size.

Answer 1

The correct option is B

Atomic number

Answer: Correct option (B)

Explanation of correct option.

1. The modern periodic table is based on atomic number.
2. When elements are arranged in increasing order of atomic number, then properties repeat after a fixed interval of time

Explanation of Incorrect option.

1. Mendeleev's periodic classification was based on atomic weight.
2. No classification is made on the basis of atomic volume and atomic size.

Conclusion.

The modern periodic table is based on atomic number. Hence option (B) is correct.