Chemical Bonding (Grade 10 NSC Matric Physical Sciences): Flashcards

Composition of compounds: which elements present and in what ratios

Groups of atoms that carry a charge and act as a single unit

For covalent compounds that form discrete molecules

For ionic compounds that form crystal lattices

Atoms share electrons to form molecules

Crystals with repeating lattice structures

$NH_4^+$

$SO_4^{2-}$

$CO_3^{2-}$

When a polyatomic ion appears more than once, e.g. $(NH_4)_2SO_4$