Increase in nuclear charge of an atom decreases the tendency of the atom to lose electrons.

Increase in nuclear charge of an atom decreases the tendency of the atom to lose electrons.
X | Y |
---|---|
1: Element with atomic number 19 | A: Group 18 [0 group] |
2: Element with electronic configuration 2 | B: Group 16 [VI A] |
3: Element with a valency of -2 | C: Group 1 [IA] |
4: Element ‘P’ which loses 3 electrons to form a cation | D: Group 17 [VII A] |
5: Element ‘Q’ in period-3 which has the highest electron affinity | E: Group 13 [III A] |