[Answer] Which chemical species can easily form an ionic bond with a cation?

Answer: d. PO43-
Which chemical species can easily form an ionic bond with a cation?

Ion pairs are formed when a cation and anion which are present in a solution of an ionizable substance come together to form a discrete chemical species .There are three distinct types of ion pairs depending on the extent of solvation of the two ions. For example magnesium sulphate exists as both contact and solvent-shared ion-pairs in seawater. Mg 2+ (aq) + SO 4 2-(aq) ⇌ Mg(SO 4)(aq)

The resulting compound is called an ionic compound and is said to be held together by ionic bonding . In ionic compounds there arise characteristic distances between ion neighbours from which the spatial extension and the ionic radius of individual ions may be derived. The most common type of ionic bonding is seen in compounds of metals and …

Ionic compound – Wikipedia

Ionic bonding – Wikipedia

Octet rule – Wikipedia

Ionic compound – Wikipedia

Reactive metals such as the alkali metals can react directly with the highly electronegative halogen gases to form an ionic product. They can also be synthesized as the product of a high temperature reaction between solids.

Ion chromatography (or ion-exchange chromatography) separates ions and polar molecules based on their affinity to the ion exchanger. It works on almost any kind of charged molecule—including large proteins small nucleotides and amino acids.However ion chromatography must be done in conditions that are one unit away from the isoelectric point of a protein.

In the simplest case the cation is a metal atom and the anion is a nonmetal atom but these ions can be of a more complex nature e.g. molecular ions like NH+ 4 or SO2− 4. In simpler words an ionic bond results from the transfer of electrons from a metal to a non-metal in order to …

The octet rule is a chemical rule of thumb …

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