Periodic TableHard

Question

The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of Na+ will be :-

Options

A.- 2.55 eV
B.- 5.1 eV
C.- 10.2 eV
D.+ 2.55 eV

Solution

Na+ + e- 
|I.E.| = |ᐃHe.g.| Hence
ᐃHe.g. of Na+ = - 5.1 eV

Create a free account to view solution

View Solution Free
Topic: Periodic Table·Practice all Periodic Table questions

More Periodic Table Questions

The electrongativity of the following elements increases in the order :...Among Al2O3, SiO2, P2O3 and SO2 the correct order of acid strength is...The set representing the correct order of first ionisation potential is :...Which of the following shows false order :-...The formation of the oxide ion O2-(g) requires first an exothermic and then an endothermic step as shown below O(g) + e-...