chemical formulae Flashcards
1
Q
what is a valency
A
eg number of bonds an atom of that element can make, number of electrons an atom gains or losses to get a full outer shell
2
Q
how can we tell if oxygen is present
A
if ‘ite’ or ‘ate’ is present (to find valency them go to page 8)
3
Q
how can you break down an ionic compound into its element
A
electricity (electrolysis)
