Question

what leads to the formation of an ionic bond with hg²+?
the attraction of a noble gas
the attraction of an nh₄+ ion
the attraction of a group 1 element
the attraction of an so₄²- ion

Explanation:

An ionic bond is formed between a cation and an anion. \(Hg^{2+}\) is a cation. Among the options, \(SO_{4}^{2 -}\) is an anion. Oppositely - charged ions (\(Hg^{2+}\) and \(SO_{4}^{2 -}\)) attract each other to form an ionic bond. A noble gas has a stable electron configuration and does not form an ionic bond in this context. \(NH_{4}^{+}\) is a cation and like - charged ions repel each other. Group 1 elements form cations (e.g., \(Na^{+}\), \(K^{+}\)) and like - charged ions (\(Hg^{2+}\) and group 1 cations) repel each other.

Answer:

the attraction of an \(SO_{4}^{2-}\) ion