Name any two radioactive elements
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naturally occurring Radioactive elements include radium Thorium and Uranium
two radioactive elements are Thorium and Uranium
two radioactive elements are Thorium and Uranium
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RADIOACTIVE ELEMENTS
1) Uranium
Atomic number 98
Atomic mass. 238
2) Polonium
Atomic number 84
Atomic mass 209
1) Uranium
Atomic number 98
Atomic mass. 238
2) Polonium
Atomic number 84
Atomic mass 209
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