Elements in Group 18 (2)

Properties of noble gases (3)

The atoms of noble gases exist as monoatoms

Another name of noble gas

Noble gas is also known as inert gas

Changes in Physical Properties of Elements When Going Down Group 18 (1)

Going down Group 18, the size of atomic radius increases due to the increase in the number of electrons and electron filled shells

Changes in Physical Properties of Elements When Going Down Group 18 (2)

Going down the group, the melting point and boiling point of the elements increase

Changes in Physical Properties of Elements When Going Down Group 18 (3)

Increase in the atomic size of elements will increase the attraction force between the atoms

Changes in Physical Properties of Elements When Going Down Group 18 (4)

The attraction force becomes stronger and more heat energy is required to overcome this force

Uses of group 18 elements such as helium (1)

Used to fill weather balloons

Uses of group 18 elements such as helium (2)

Used in the oxygen tanks of divers

Uses of group 18 elements such as neon

Used in advertising board lights

Uses of group 18 elements such as argon

Used to fill in electric bulb