How to spell RUBIDUM correctly?
The correct spelling for "rubidum" is actually "rubidium". It is a chemical element with the symbol Rb and atomic number 37. Possible correct suggestions include typing "rubidium" instead of "rubidum" or checking a dictionary or spell-check tool for the correct spelling.
List of suggestions on how to spell rubidum correctly
- Rubidium Rubidium is often used in atomic clocks.
