Question

First ionisation enthalpy of two elements X and Y are 500kJ/mol and 375kJ/mol respectively. Comment about their relative position in a group as well as in a period.

Anyone please answer it quickly.
Thanks in advance. ​

Answer 1

Answer:

First ionisation enthalpy of two elements X and Y are 500kJ/mol and 375kJ/mol respectively. Comment about their relative position in a group as well as in a period.

Explanation:

Y will come first than X.

Down a group

Y

X

Across a group

XY

Answer 2

Answer:

position in a group : x will be above y because the ionisation energy decreases down the group.

position in a period : x will be right side of y because ionisation energy increases from left to right.

hope it helps you..