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Radioactive elements

Name the elements of the periodic table that emit radiation.
Grey elements occur naturally, even if only trace amounts
Quiz by KevinTheCat
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Last updated: June 13, 2023
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First submittedFebruary 22, 2022
Times taken55
Average score39.5%
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#
Answer
43
Technetium
61
Promethium
83
Bismuth
84
Polonium
85
Astatine
86
Radon
87
Francium
88
Radium
89
Actinium
90
Thorium
91
Protactinium
92
Uranium
93
Neptunium
#
Answer
94
Plutonium
95
Americium
96
Curium
97
Berkelium
98
Californium
99
Einsteinium
100
Fermium
101
Mendelevium
102
Nobelium
103
Lawrencium
104
Rutherfordium
105
Dubnium
106
Seaborgium
#
Answer
107
Bohrium
108
Hassium
109
Meitnerium
110
Darmstadtium
111
Roentgenium
112
Copernicium
113
Nihonium
114
Flerovium
115
Moscovium
116
Livermorium
117
Tennessine
118
Oganesson
NunoPP03
+1
Level 69
Dec 27, 2023
I don't think Bismuth is still considered a radioactive element.
KevinTheCat
+1
Level 67
Dec 27, 2023
From Wikipedia: "Bismuth was long considered the element with the highest atomic mass whose nuclei do not spontaneously decay. However, in 2003 it was discovered to be extremely weakly radioactive."
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