Number of confirmed elements
118
Periodic Table
Dmitri Mendeleyev
Squeaky voice
Helium
Candles
Paraffin wax (CnH2n+2)
US States
Californium, Tenessine
Twice a Chemistry Nobel Laureate
Frederick Sanger (1958, 1980)
Lightning smell
Ozone
Perfume fragrances
Aldehydes
First scientifically discovered element
Phosphorus
Father of modern chemistry
Antoine Lavoisier
Non-silvery metals
Gold, copper
Airbags
Sodium azide
Origin of copper's name
Cyprus
Originating "Catalysis" term
Jöns Jacob Berzelius
Rarest element on Earth
Astatine (28 g in total)
Mars
Iron Oxides
First synthetic element
Technetium
Full address using only chemical elements
Glenn T. Seaborg (Sg, Lr, Bk, Cf, Am)
Only cheaper than antimatter
Buckyball ($167 million/g)
Vietnam War
Agent Orange