Arrange the following in Increasing first ionization potential : Mg, Al, Si, Na
Answers
Answer:
Na < Mg > Al < Si is the correct order.
Explanation:
Ionization potential is defined as the energy required to remove an electron from its isolated gaseous state.
The first ionization potential is the energy required to remove one mole of loosely bound election from its isolated gaseous state.
The first ionization potential of Mg will be greater than Na is because it has fully filled electronic configuration.
Fully filled configuration is more stable.
The first ionization potential of Al will be smaller than Si due to effective nuclear charge.
Effective nuclear charge is the total or resultant nuclear charge experienced by an electron.
It is the most important property in the periodic table.
The first ionization potential of Al is smaller than Mg because it doesn't have stable electronic configuration as compared to Mg.
It has one extra electron than the stable configuration.
Thus, the correct answer is Na < Mg > Al < Si.