IB Chemistry SL 2.1.2 Ionic Bonding Questions

Use exam questions to describe electrostatic attraction between ions, construct neutral ionic formulae and separate ionic from covalent bonding.

Exam points

State ionic bonding as electrostatic attraction between oppositely charged cations and anions.
Write a neutral ionic formula or name by balancing cation and monatomic/polyatomic anion charges, including correct subscripts and oxidation-state notation.
Distinguish ionic attraction between ions from covalent bonding within a polyatomic ion or compound containing both bond types.

[Maximum number: 2]

Iron may be extracted from iron (II) sulfide, FeS.

Iron (II) sulfide, FeS , is ionically bonded.

Describe the bonding in this type of solid.

electrostatic attraction between oppositely charged ions/between $\mathrm{Fe}^{2+}$ and $\mathrm{S}^{2-}$

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