PT/Chem: Radioactive Elements - 21 Random

Type the Element name for the given symbol.
The 37 radioactive elements are #43, #61, and #84 thru #118.
Only four exist naturally on earth - Radon, Radium, Thorium, & Uranium.
See also PT/Chem: Elements 1-95 and PT/Chem: Symbols 1-15
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Sonmi42
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Last updated: March 13, 2026
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First submittedApril 18, 2024
Times taken143
Average score57.1%
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Atomic
#
Sym
Element
94
Pu
Plutonium
87
Fr
Francium
91
Pa
Protactinium
107
Bh
Bohrium
118
Og
Oganesson
106
Sg
Seaborgium
104
Rf
Rutherfordium
115
Mc
Moscovium
110
Ds
Darmstadtium
84
Po
Polonium
105
Db
Dubnium
100
Fm
Fermium
90
Th
Thorium
117
Ts
Tennessine
97
Bk
Berkelium
92
U
Uranium
89
Ac
Actinium
113
Nh
Nihonium
96
Cm
Curium
98
Cf
Californium
61
Pm
Promethium
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