Atomic number: 10
Atomic weight: 18.6608909986333...
Boiling point (Celsius): -359
Melting point (Celsius): -459
State of matter at room temperature: Solid
Chemical and physical properties: Slufium is very cold, boiling point colder than Antarctica. Metallic, used for periodic tables, colder than 0 Kelvin.
What are the potential uses for your element? It is use-ful for sunscreen, SPF 5000, makes you especially protected from the sun.