• ​Symbol: He
• Group: VIII (())
• Period: 1
• Relative Atomic Mass: 4
• Atomic Number: 2
• ​Status: Non-Metal, Noble Gas

Helium

4



2

O

He

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