a radioactive element of the actinide series; found in uranium ores
Used in a Sentence
actinium
How to use actinium in a sentence. Example sentences and definitions for actinium.
Editorial note
That's one example, and there's also lead 212 and actinium 228, which also peaks in the 100s of keVs.
Examples3
Definitions1
Parts of speech1
Quick take
a radioactive element of the actinide series; found in uranium ores
Meaning at a glance
The clearest senses and uses of actinium gathered in one view.
Definitions
Core meanings and parts of speech for actinium.
noun
a radioactive element of the actinide series; found in uranium ores
See also: Ac
Example sentences
That's one example, and there's also lead 212 and actinium 228, which also peaks in the 100s of keVs.
[1] Sidestepping the entire debate here about whether lanthanum and actinium are d-block elements, or lutetium and lawrencium are.
An old TRS-80 assembly programming book I had suggested that an early conference of computer experts suggested that the last six digits be named actinium, barium, curium, dysprosium, erbium, and fermium until "cooler heads prevailed".
Frequently asked questions
Short answers drawn from the clearest meanings and examples for this word.
How do you use actinium in a sentence?
That's one example, and there's also lead 212 and actinium 228, which also peaks in the 100s of keVs.
What does actinium mean?
a radioactive element of the actinide series; found in uranium ores
What part of speech is actinium?
actinium is commonly used as noun.