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Audio English.net » Dictionary » A » Atomic Number 46 ... Aton

ATOMIC NUMBER 87

 Dictionary entry overview: What does atomic number 87 mean? 

ATOMIC NUMBER 87 (noun)
  The noun ATOMIC NUMBER 87 has 1 sense:

1. a radioactive element of the alkali-metal group discovered as a disintegration product of actinium

  Familiarity information: ATOMIC NUMBER 87 used as a noun is very rare.


 Dictionary entry details 


ATOMIC NUMBER 87 (noun)


Sense 1atomic number 87 [BACK TO TOP]

Meaning:

A radioactive element of the alkali-metal group discovered as a disintegration product of actinium

Classified under:

Nouns denoting substances

Synonyms:

atomic number 87; Fr; francium

Hypernyms ("atomic number 87" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)


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