neptunium series

nep·tu·ni·um se·ries

N n

- US Pronunciation
- US IPA
- [nep-too-nee-uh m, -tyoo- seer-eez]
- /nɛpˈtu ni əm, -ˈtyu- ˈsɪər iz/

- US Pronunciation
- US IPA
- [nep-too-nee-uh m, -tyoo- seer-eez]
- /nɛpˈtu ni əm, -ˈtyu- ˈsɪər iz/

Definitions of neptunium series words

noun neptunium series a radioactive series that starts with plutonium-241 and ends with bismuth-209. Neptunium-237 is the longest-lived member of the series. The series does not occur in nature 0
noun neptunium series the radioactive series of nuclides starting with neptunium-237, with a half-life of 2.2 x 106 years, and ending with stable bismuth-209: many radionuclides, as plutonium-241 and uranium-237, eventually decay into neptunium-237 and are often considered members of the neptunium series 0

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A common word. It’s meaning is known to most children of preschool age. About 95% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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