ionium.
/ahy-oh-nee-uhm/US // aɪˈoʊ ni əm //UK // (aɪˈəʊnɪəm) //
鑀,离子,离子体,电位
Definitions
n.noun · 名词
- 1.
Chemistry.
- ›a naturally occurring radioactive isotope of thorium. Symbol: Io; atomic number: 90; atomic weight: 230.
Examples
Ionium expels an alpha particle and becomes radium, which is a bivalent element resembling barium belonging to the second group.
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