Question

Among /E1 ,/E2, /E3 of an element witch is the largest . Arrange them in increasing order​

Answer 1

Answer:

IE1<IE2<IE3

Explanation:

As electrons are successively removed the effective nuclear charge goes on increasing so it becomes more difficult to remove next electron.

Answer 2

Answer:

$IE _{3} < IE _{2} < IE _{1}$

Explanation:

The third ionization energy is greater than the second and the first because cation formed on the account of most loosely bounded electrons is much smaller to the parent atoms and it require a much larger amount of energy to remove the electrons from it. The same is true for the dipositive ion.

Hope it helps you...