Consider the following statements with reference to the periodic table of chemical element1. Ionisation potential gradually decreases along a period2. In a group of element, electron affinity decreases as the atomic weight increases3. Ina given period, electronegativity decrease as the atomic number increasesWhich 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 element1. Ionisation potential gradually decreases along a period2. In a group of element, electron affinity decreases as the atomic weight increases3. Ina given period, electronegativity decrease as the atomic number increasesWhich 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