State which of A, B, C, D or E is the electronic configuration of a noble gas atom.
State which electronic configuration, A, B, C, D or E, is the atom of an element that is used for food containers because it resists corrosion.
State which electronic configuration, A, B, C, D or E, represents an atom of an element in Group V of the Periodic Table.
State which electronic configuration, A, B, C, D or E, represents an atom of an element from Period 3 of the Periodic Table.
State which electronic configuration, A, B, C, D or E, represents an atom that makes a stable ion carrying a charge of $2-$.
Deduce how many protons and neutrons are present in the vanadium atom shown, $^{51}_{23}\text{V}$.