3.2.3 - ion formation Flashcards
1
Q
why do atoms want a full outer shell
A
to become stable
2
Q
what is it called when an atom loses electrons?
A
oxidisation
3
Q
what is it called when an atom gains electrons?
A
reduction
4
Q
what do metals do to get a full outer shell
A
lose all their outer shell electrons
5
Q
what do non-metal atoms do to get a full outer shell
A
gain electrons
6
Q
what happens when metals and non-metals react
A
the metal atoms give electrons to the non-metal atoms
7
Q
what is formed after the electrons have been transferred from metal to non-metal
A
ions
8
Q
charge of ions in group 1
A
1+
9
Q
charge of ions in group 2
A
2+
10
Q
charge of ions in group 3
A
3+
11
Q
charge of ions in group 5
A
3-
12
Q
charge of ions in group 6
A
2-
13
Q
charge of ions in group 7
A
1-
