Maschile

rubidio

(Inglese)

rubidium

Con il trattino come
ru‧bi‧dio
Pronunciato come (IPA)
/ruˈbidjo/
Etimologia (Inglese)

Borrowed from New Latin rubidium, from Latin rubidus (“blonde”), because under spectroscopic analysis it has two red stripes; cf. also the element-forming suffix -io.

Rb

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