top of page
The Periodic Table
The Periodic Table
The Periodic Table
- Symbol: Al
- Group: III
- Period: 3
- Relative Atomic Mass: 27
- Atomic Number: 13
- Status: Metalloid
Aluminium
27
13
O
Al
The Group (column) Number =
the number of electrons on the outer shell of the atom
The Period (row) Number =
the number of shells on the atom
The Group (column) Number =
the number of electrons on the outer shell of the atom
The Period (row) Number =
the number of shells on the atom
bottom of page