Consider the following statements with reference to the Periodic Table of chemical elements:1. Lonisation potential gradually decreases along a period.2. In a group of elements,electron affinity decreases as the atomic weight increases.3. In a given period, electronegativity decreases as the atomic number increases.Which of these statement(S) is/are correct ?

Consider the following statements with reference to the Periodic Table

1.	Consider the following statements with reference to the Periodic Table of chemical elements:1. Lonisation potential gradually decreases along a period.2. In a group of elements,electron affinity decreases as the atomic weight increases.3. In a given period, electronegativity decreases as the atomic number increases.Which of these statement(S) is/are correct ?
A.	1 only
B.	2 only
C.	1 and 3
D.	2 and 3
Answer» C. 1 and 3