Bridging Course Flashcards
1
Q
Define relative atomic mass.
A
Weighted mean mass of an atom compared with 1/12th mass of an atom of carbon-12.
2
Q
Define relative isotopic mass.
A
Mass of an isotope compared with 1/12th of the mass of a carbon-12 atom.
3
Q
State the positive and negative compound ions.
A
Sulphate - SO4 2-
Nitrate - NO3 -
Phosphate - PO4 3-
Hydroxide - H+
Carbonate - CO3 2+
Silver - Ag+
Zinc - Zn 2+
Ammonia - NH4 +
