HyperDic: atomic_number_87

English > 1 sense of the expression atomic number 87:
NOUNsubstanceatomic number 87, francium, Fra radioactive element of the alkali-metal group discovered as a disintegration product of actinium
English > atomic number 87: 1 sense > noun 1, substance
MeaningA radioactive element of the alkali-metal group discovered as a disintegration product of actinium.
Synonymsfrancium, Fr
Broadermetallic element, metalAny of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Spanishfrancio, número atómico 87
Catalanfranci, Fr, número atòmic 87

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