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 oppositely - charged ions. $Hg^{2 + }$ is a cation. It will form an ionic bond with an anion. A noble gas is neutral and does not form ionic bonds in this context. $NH_{4}^{+}$ is a cation and cations do not form ionic bonds with other cations. Group 1 elements form cations and do not form ionic bonds with other cations. $SO_{4}^{2 - }$ is an anion and can form an ionic bond with the $Hg^{2+}$ cation through electrostatic attraction.

Answer:

D. the attraction of an $SO_{4}^{2 - }$ ion