Chemistry-Periodic Table
NEET Chemistry Periodic Table Assertion Reason Question
Type: Assertion Reason-assertion-Medium-Class 11
Assertion (A): The properties of elements are a periodic function of their atomic numbers. | Reason (R): Mendeleev arranged elements in order of increasing atomic weights in his periodic table.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
Correct Answer
Option B
Detailed Explanation
While Mendeleev arranged elements by atomic weights, the modern periodic table is arranged by atomic numbers, making A true. However, R does not explain A since it refers to Mendeleev's method.
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