How would you explain the fact that the second ionisation potential is always higher than the first ionisation potential?

थोडक्यात उत्तर

Second ionization potential is always higher than the first ionization potential.
Removal of one electron from the valence orbit of a neutral gaseous atom is easy so first ionization energy is less. But from a uni positive ion, removal of one more electron becomes difficult due to the more forces of attraction between the excess of protons and less number of electrons.
Due to greater nuclear attraction, second ionization energy is higher than first ionization energy.

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पाठ 3: Periodic Classification Of Elements - Evaluation [पृष्ठ ९६]

पाठ 3 Periodic Classification Of Elements
Evaluation | Q II. 7. | पृष्ठ ९६

Various successive ionisation enthalpies (in kJ mol^-1) of an element are given below.

IE₁	IE₂	IE₃	IE₄	IE₅
577.5	1,810	2,750	11,580	14,820

The element is

Identify the wrong statement.

Which one of the following arrangements represent the correct order of least negative to most negative electron gain enthalpy

The element with positive electron gain enthalpy is

Assertion: Helium has the highest value of ionisation energy among all the elements known

Reason: Helium has the highest value of electron affinity among all the elements known

Explain the periodic trend of ionisation potential.

Explain the following, give an appropriate reason.

Ionisation potential of N is greater than that of O

Explain the following, give an appropriate reason.

First ionisation potential of the C-atom is greater than that of the B atom, whereas the reverse is true is for the second ionisation potential.

What is the screening effect?

State the trends in the variation of electronegativity in groups and periods.