Question

The attributes of corresponding elements are the periodic functions of the

• A. Atomic Weights
• B. Atomic Number
• C. Chemical properties
• D. No. of protons

Hint:

Elements are arranged in the periodic table according to their atomic number, which governs their periodic properties.

Answer 1

The Correct Option is B

Step 1: Periodic Law
Mendeleev's periodic law states that the properties of elements are periodic functions of their atomic weights, but Moseley's work later confirmed that the properties of elements are periodic functions of their atomic numbers.
The periodic table is now arranged by atomic number.
Step 2: Explanation of Other Options
Option (a) is incorrect because elements are now arranged by atomic number, not atomic weight, due to isotopes.
Option (c) is incorrect because chemical properties are related to atomic number but are not the periodic function themselves.

Option (d) is incorrect because the number of protons (atomic number) is what influences periodicity, not just the number of protons alone.

Step 3: Conclusion Thus, the attributes of corresponding elements are the periodic functions of the atomic number.