Pearson Edexcel IAL Chemistry A2 12.12 the terms
Pearson Edexcel IAL Chemistry A2 12.12 the terms
Practise choosing and writing thermochemical equations for atomisation, electron affinity and lattice energy definitions.
How this is tested
- select the equation for atomisation using one mole of gaseous atoms from standard states
- distinguish first and second electron affinity equations using charge and state symbols
- explain trends in electron affinity using atomic radius, shielding and electron repulsion