Vocab Flashcards
(9 cards)
1
Q
Relative atomic mass
A
Mean mass of an atom of an element compared to 1/12th of the mass of an atom of carbon-12
2
Q
Relative isotopic mass
A
Mean mass of an atom of an isotope compared with 1/12th of the mass of an atom of carbon 12
3
Q
Relative molecular mass
A
Average mass of a molecule or formula unit compared to 1/12th of the mass of an atom of carbon12
4
Q
A
5
Q
A
6
Q
First ionisation energy
A
Energy needed to remove 1 electron from each atom in 1 mole of gaseous atoms to form 1 mole of gaseous 1+ ions
7
Q
A
8
Q
Second ionisation energy
A
Energy need to remove 1 electron from each ion in 1 mole of gaseous 1+ ions to form 1 mole of gaseous 2+ ions
9
Q
A
