Essential GCSE Flashcards
1
Q
group 1 elements
A
form +1 ions
2
Q
group 2 elements
A
form +2 ions
3
Q
group 3 elements
A
form +3 ions
4
Q
group 4 elements
A
rarely form ions
5
Q
group 5 elements
A
form -3 ions
6
Q
group 6 ions
A
form -2 ions
7
Q
group 7 ions
A
form -1 ions
8
Q
group 0 elements
A
don’t form ions
9
Q
hydrogen
A
h+
10
Q
ammonium
A
nh4+
11
Q
silver
A
ag+
12
Q
lead (II)
A
pb2+
13
Q
zinc
A
zn2+
14
Q
iron (II)
A
Fe2+
15
Q
copper (II)
A
cu2+
16
Q
hydroxide
A
OH-
