Give the letters, A, B, C, D, E, F, G or H, for the electronic structures that represent atoms of two different noble gases.
Give the letter, A, B, C, D, E, F, G or H, for the electronic structure showing an ion from a Group I element.
Give the letter, A, B, C, D, E, F, G or H, for the electronic structure showing an ion from a Group V element.
Give the letters, A, B, C, D, E, F, G or H, for the electronic structures that show a pair of ions capable of forming a compound with the formula XY$_2$.
State which electronic structure, A, B, C, D, E, F, G or H, is incorrect. Explain why.
State how many protons are present in the nucleus of ion C.
Use the Periodic Table to deduce the chemical symbol for G.
Use the Periodic Table to deduce the element which forms an ion with a 3+ charge and the same electronic structure as H.