元素名称的来历－SI单位制

quote]原文由 nick22jp 发表:SI prefixes
Factor Prefix Symbol

10^9 giga G

10^6 mega M

10^3 kilo k

10^-1 deci d

10^-2 centi c

10^-3 milli m

10^-6 micro u(Greek mu)

10^-9 nano n

10^-12 pico p


SI is from the French, Systeme International.
[/quote]

气体分类

Monatomic gases:
helium, neon

Diatomic gases:
oxygen, nitrogen, fluorine, chlorine, carbon monoxide

Triatiomic gases:

hydrogen sulfide, carbon dioxide, sulfur dioxide

Tetraatomic gases:
ammonia