Factors affecting Ionization Energy
- The electrons are attracted to the nucleus strongly if it has a positive charge.
- The attraction will be stronger if an electron is nearby or close to the nucleus than if it is farther away.
- The attraction forces are weaker if there are more electrons between the outer level and the nucleus.
- Two electrons in the same orbital are subject to some sort of repulsion when they are there. Consequently, the nucleus's attraction is disturbed. In essence, paired electrons will exhibit lower ionisation energy due to their ease of removal.
The first ionization potential of Na, Mg, Al, and Si are in the order: (1) Na < Mg > Al < Si (2) Na >Mg>Si>Al (3) Mg > Na > Al > Si (4) Na > Al > Mg > Si.
The first ionization potential of Na, Mg, Al, and Si are in the order Na < Mg > Al < Si. Ionization potential corresponds to the energy measured in electron volts which is necessary to remove an electron completely from an atom or to ionize a gas molecule.
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