eka-protactinium
Hello, you have come here looking for the meaning of the word eka-protactinium. In DICTIOUS you will not only get to know all the dictionary meanings for the word eka-protactinium, but we will also tell you about its etymology, its characteristics and you will know how to say eka-protactinium in singular and plural. Everything you need to know about the word eka-protactinium you have here. The definition of the word eka-protactinium will help you to be more precise and correct when speaking or writing your texts. Knowing the definition ofeka-protactinium, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
English
Etymology
eka- + protactinium
Noun
eka-protactinium (uncountable)
- Unbitrium (Ubt), an unsynthesized chemical element with atomic number 123.
- Unquadunium (Uqu), an unsynthesized element with atomic number 141.
Usage notes
This inconsistency, between referring to element 123 versus element 141, comes from the fact the elements beyond oganesson are not known, so it is unknown what element would be placed directly below actinium.