Advertisements
Advertisements
Question
How would you explain the fact that the second ionisation potential is always higher than the first ionisation potential?
Advertisements
Solution
- 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.
APPEARS IN
RELATED QUESTIONS
The group of elements in which the differentiating electron enters the anti penultimate shell of atoms are called ________.
In the third period the first ionization potential is of the order.
Identify the wrong statement.
Which one of the following arrangements represent the correct order of least negative to most negative electron gain enthalpy
Which of the following orders of ionic radii is correct?
The First ionisation potential of Na, Mg and Si are 496, 737 and 786 kJ mol-1 respectively. The ionisation potential of Al will be closer to
Which one of the following is true about metallic character when we move from left to right in a period and top to bottom in a group?
Explain the periodic trend of ionisation potential.
Why the first ionisation enthalpy of sodium is lower than that of magnesium while its second ionisation enthalpy is higher than that of magnesium?
What is the screening effect?
