FRANCIUM

francium, Fr, atomic number

(noun) a radioactive element of the alkali-metal group discovered as a disintegration product of actinium

Source: WordNet® 3.1


Etymology

Noun

francium (usually uncountable, plural franciums)

The chemical element (symbol Fr) with an atomic number of 87. It is an intensely radioactive alkali metal that is not found in nature.

(countable) A single atom of this element.

Synonyms

• actinium-K (obsolete)

• virginium (obsolete)

Source: Wiktionary



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Coffee Trivia

There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.

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