Value of electron gain enthalpy of 16, 17 groups are positive or negative which change is observed ?

Value of electron gain enthalpy of 16, 17 groups are positive or negat

1.	Value of electron gain enthalpy of 16, 17 groups are positive or negative which change is observed ?
Answer» SOLUTION :VALUE of electron GAIN enthalpy of (16, 17 GROUPS are negative)