Science Quiz / Higher Atomic Number, Lower Atomic Mass

Random Science or Elements Quiz

Can you name the elements whose relative atomic mass is lower than the element before it?

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Score 0/8 Timer 03:00
#ElementMasses
139.10, 39.95
258.69, 58.93
3126.90, 127.60
4231.04, 232.04
5237.05, 238.03
6243.06, 244.06
7270.13, 271.13
8281.16, 281.17

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