Atomic Number: 2
Helium

He

Electrons: 2
Oxidation States:
Atomic Weight: 4.002602
Phase: Gas
M.P.: (at 2.5 MPa) 0.95 K
(-272.2 °C, -458.0 °F)
B.P.: 4.22 K
(-268.93 °C, -452.07 °F)
C Point (K): -267.96

Occurrence: 8.9%
Helium is used in balloons and if inhaled makes your voice all funny. The Euthenasia society approves a tank of helium as the best, fastest, most painless way to kill oneself if you do not have better options.

Thanks: Wikipedia

1.5 feet in diameter
acrylic on wood