Helium

2
He
4.002602(2)

helium.gif (4294 bytes)
Used in Blimps and Balloons

Properties

Symbol Name Atomic Number Atomic Weight Group Number
He helium 2 4.002602 (2) 18

Description

Standard State: gas at 298 K
Color: colorless

Helium is the second most abundant element in the universe after hydrogen. Helium is mainly used for small party balloons. Breathing in helium causes your voice to become high pitched, but this condition lasts a short period.