Bonding Between Cations and Anions

[Tiffany_Cacy_3D]

When you have an example like the one that professor went over during lecture with 2 cations and 1 anion where do they bond together if they all have full valence shells? I believe the example was ammonium sulfate (NH4)2+ (SO4)2-

[Samantha Kwock 1D]

In the case of (NH4)+ and (SO4)2-, (NH4)+ only has a full valence shell because it gave up one of its electrons, generating a positive charge and (SO4)2- only has a full valence shell because it stole two electrons, generating the negative 2 charge. Cations and anions form ionic bonds through this transfer of electrons. Covalent bonds are the bonds that share electrons to form full valence shells.

[Harshita Talkad 4L]

When he drew the Lewis structure of the entire molecule, he drew the SO₄ molecule between the NH₄ molecules, without including any of the lines that indicate bonding.

[Emily Ng_4C]

(NH4)2+ and (SO4)2- are cations and anions which form an ionic bond through the transferring of electrons.