Argon (Ar)
A lazy gas that fills old-style light bulbs.
Argon facts
- Symbol
- Ar
- Atomic number
- 18
- Atomic mass
- 39.948
- Family
- Noble gases
- Period
- 3
- Group
- 18
What does argon react with?
In our lab argon doesn't make any new substances when it's simply mixed with the others.
Nothing happens when it's simply mixed with 98 of the others. 21 pairings have never been tried, because not enough atoms have ever existed.