chemical-element
public under substance 1012
- carbon 12
- chlorine 1
- hydrogen 1
- metal 118
- nitrogen 1
- noble-gas 6
- nonmetal 6
- oxygen 1
- plutonium 2
- actinium
- allotrope
- alum
- ammonia-alum
- arsenic
- astatine
- bohrium
- boron
- darmstadtium
- dubnium
- germanium
- hassium
- lawrencium
- meitnerium
- mendelevium
- nobelium
- phosphorus
- roentgenium
- rutherfordium
- seaborgium
- selenium
- silicon
- sulfur
- tellurium
- trace-element
- transactinide
- transuranic-element
- ununbium
- ununhexium
- ununpentium
- ununquadium
- ununtrium