The Particles That Substances Are Made Of (Grade 10 NSC Matric Physical Sciences): Flashcards

Smallest unit of matter retaining element properties

2+ different atoms bonded in fixed proportions

Always in definite, fixed proportions

Shows exact number of each atom type in one molecule

Simplest whole number ratio of atoms in a compound

Small, discrete molecules with shared electrons

Electrons transferred from metals to non-metals

Delocalised electrons forming a 'sea' of electrons

Best representation of molecular shape and size

$ext{O}_2$ at positive electrode, $ext{H}_2$ at negative