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atomic number 87

 

Definitions from WordNet

Noun atomic number 87 has 1 sense
  1. francium, Fr, atomic number 87 - a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
    --1 is a kind of metallic element, metal

Definitions from the Web

Atomic Number 87

Definition: Atomic number 87 refers to the number of protons found in the nucleus of an atom of an element called francium. It is a unique identifier for francium in the periodic table.

Senses/Usages:

  1. Chemistry Sense: In chemistry, atomic number 87 is used to identify and differentiate francium from other elements. Francium, with its atomic number of 87, is the second rarest natural element on Earth.
  2. Scientific Research Sense: Atomic number 87 plays a significant role in scientific research involving the study of radioactive elements and their properties, as francium is highly radioactive.
  3. Academic Sense: Atomic number 87 is taught in educational institutions to familiarize students with the periodic table and the unique characteristics of francium as an element.

Sample Sentences:

  • Francium, with an atomic number 87, is known to have the highest equivalent weight of any element.
  • Using a mass spectrometer, scientists can accurately determine the atomic number 87 of an unknown radioactive sample.
  • Learning about atomic number 87 and its significance in chemistry is crucial for understanding the properties of francium.

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