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Noun: atomic number 87
- A radioactive element of the alkali-metal group discovered as a disintegration product of actinium
- francium, Fr
Type of: metal, metallic element
Nearest
atomic number 78
atomic number 79
atomic number 8
atomic number 80
atomic number 81
atomic number 82
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atomic number 86
atomic number 87
atomic number 88
atomic number 89
atomic number 9
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atomic number 95
atomic number 96
atomic number 79
atomic number 8
atomic number 80
atomic number 81
atomic number 82
atomic number 83
atomic number 84
atomic number 85
atomic number 86
atomic number 87
atomic number 88
atomic number 89
atomic number 9
atomic number 90
atomic number 91
atomic number 92
atomic number 93
atomic number 94
atomic number 95
atomic number 96