Electrons and Ionisation

An atomic orbital is a ...... around the nucleus that can hold up to .... electrons, with opposite spins.

region, two

Can you explain the trend first ionisation energy across a period using these key words: nuclear charge, shells and shielding, nuclear attraction, atomic radius, and first ionisation energy. Word this like an exam response.

First ionisation energy is the energy required to remove one ........ from each atom in one mole of ...... atoms of an element to form

one mole of gaseous 1+ ions.

Electron, gaseous

How do you tell which element is which using the successive ionisation energies?

Write the electronic configuration then use the (Use Analia Sanchez's Video for support).