What is the relationship between elements and the periodic table and ionisation energy?

Answer 1

The relationship between atomic numbers and first ionization energies is that within the same period, as atomic number increases so does first ionization because as nuclear charge increases and atomic radius decreases, electrons become harder to remove. However, within the same group, the first ionization energy decreases as atomic number increases because of the added energy level, the electrons are farther from the nucleus and easier to remove.

Answer 2

Valence electrons, those electrons in the outer shell of atoms, have lower ionization energies than inner electrons have. It doesn't take as much energy to remove valence electrons from a given atom as it does to remove electrons from closer-in orbitals.

Answer 3

In general the higher an element's electronegativity, the higher its ionization energy. The farther up and to the right you go on the Periodic Table, the higher an element's electronegativity, and also the higher an element's ionization energy. Ionization energy is simply the energy required to strip an electron from an atom, and the more electronegative an element is, the more energy it requires to do so.

Answer 4

Atomic radius is inversely proportional to first ionization energy.

As atomic radius increases, first ionization energy decreases.

Answer 5

More the atomic size lesser ionization energy.

Answer 6

The ionization energy decrease down in a group.

Answer 7

It is inversely proportional.