Which order of ionization energy is correct ans. Si = P Mg > Al Si > P Mg < Al

The correct order of ionization energy is:

Mg > Al

Si < P

Ionization energy increases across a period from left to right and decreases down a group. Therefore, phosphorus (P) has a higher ionization energy than silicon (Si) because it is to the right of silicon in the periodic table.

Similarly, magnesium (Mg) has a higher ionization energy than aluminum (Al) because it is to the left of aluminum in the periodic table.

The statement "Si = P" is incorrect because silicon and phosphorus do not have the same ionization energies.

The statement "Mg < Al" is also incorrect because magnesium does not have a lower ionization energy than aluminum.