Aluminium
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Aluminium or aluminum is a chemical element; it has symbol Al and atomic number 13. It has a density lower than other common metals, about one-third that of steel. Aluminium has a great affinity towar
Aluminium ingot
Three 1.0 pound (0.454 kg) bullion ingots of triple nine aluminium, iron, and copper etched with their scientific details.
Bauxite, a major aluminium ore. The red-brown color is due to the presence of iron oxide minerals.
Ionization energy
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In physics and chemistry, ionization energy is the minimum energy required to remove the most loosely bound electron of an isolated gaseous atom, positive ion, or molecule. The first ionization energy
These electron configurations do not show the full and half-filled orbitals.
Here the added electron has a spin opposed to the other 2p electrons. This decreases the ionization energy of oxygen
Because of a single p-orbital electron in gallium's configuration, makes the overall structure less stable, hence the dip in ionization energy values
Actinium's electron configuration predetermines that it would require less energy to remove that single d-orbital electron, therefore even though it has a larger EC, radium still has the higher IE