• atomic #: 3
• atomic mass: 6.9
• density: 0.535 g/cm^3
• boiling point: 1342 degrees celsius
• melting point: 180.54 degrees celsius
• Lightest metal
• easily floats on water

  

•  atomic #: 53
• atomic mass: 126.9
• density: 4.94 g/cm^3
• boiling point: 184.3 degrees celsius
• melting point: 113.7 degrees celsius
• sublimates into a beautiful violet vapor when heated
•  used as disinfectants before better antiseptic agents were found.

• atomic #: 8
• atomic mass: 16.0
• density: 1.429 g/l
• boiling point: -182.9 degrees celsius
• melting point: -218.3 degrees celsius
• At -183.0DegreeC oxygen is a beautiful pale blue liquid
•  at room temperature it is a colorless gas.
•  we all need if we want to live more than a few minutes longer.