What is an ion?
An ion is an atom (or a group of atoms) that has gained or lost one or more electrons.
What happens if an atom loses electrons?
It becomes positively charged.
What is a positively charged atom called?
A cation.
What happens if an atom gains electrons?
It becomes negatively charged
What is a negatively charged atom called?
An anion.
Sodium (Na) loses 1 electron
Na^+
Magnesium (Mg) loses 2 electrons
Mg^2+
What is the charge of ion for group 3?
+3
What is the charge of ion for group 6?
-2
What type of ion is group 3?
Cation
What type of ion is group 6?
anion
What type of ion is group 1?
+1
Where are the metals located on the periodic table?
Metals are on the left side.
What ions do metals form?
Positive ions
What ions do non metals form?
Negative ions
Where are metals located on the periodic table?
Left side
Where are non-metals located on the periodic table?
Right side of the table, groups 5-7
