Why do you think that the ionization energy tends to decrease within a family of the periodic table?

Question

Since ionization energy tends to increase within a period of the periodic table because they are in higher energy orbitals
so it'll take more energy to remove the electrons.
It decreases because it doesn't take as much energy to remove electrons?

thanks in advance

Answer 1

If what you posted is your response, I don't think it is a very good response. In fact, it sounds like gibberish to me.
Ionization energy decreases as one moves from the top to the bottom of the periodic table in the same family (group) because the outer electron is further away from the nucleus; therefore, it is easier to pull the electron away from the atom. Remember that Force=k*(distance/r^2) so as the radius increases the force decreases.

Answer 2

Thank you