Key words Flashcards
1
Q
orbitals
A
a region around the nucleus wich can hold 2 electrons (with opposite spin)
2
Q
RAM
A
weighted mean mass of an atom of an element relative to 1/12 of an atom of carbon-12
3
Q
RIM
A
the mass of an isotope relative to 1/12 pf the mass of an atom of carbon-12
4
Q
emperical formulae
A
simplest whole number ratioof atoms in a compound
5
Q
collision theory
A
reactant particles need to collide with enough energy to cause a reaction
6
Q
homologous catalyst
A
when the catalyst is in the same state as the reactants
7
Q
heterogeneous
A
when the catalyst is in a different state from the reactants
8
Q
Molecular formua
A
the actual number of atoms of each element in a compound
