Random 20 Elements - Atomic Numbers

Can you guess these random 20 elements given their atomic numbers?
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Last updated: August 9, 2020
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First submittedAugust 9, 2020
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Average score70.0%
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Atomic Number
Element
15
Phosphorus
48
Cadmium
83
Bismuth
98
Californium
4
Beryllium
91
Protactinium
29
Copper
89
Actinium
40
Zirconium
6
Carbon
13
Aluminium
85
Astatine
90
Thorium
78
Platinum
17
Chlorine
114
Flerovium
105
Dubnium
68
Erbium
97
Berkelium
2
Helium
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