Question

in addition to uranium wheel other actinoid occur in naturally in significant amount
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Answer 1

Answer:

In addition to the Uranium wheel, Thorium also occurs in nature in a significant amount.

Explanation:

• There are five actinides found in nature: thorium, protoactinium, uranium, neptunium, and plutonium.
• Other actinides found were synthesized artificially in nuclear reactors and particle accelerators.
• Thorium and uranium are the only actinides found in significant numbers in the earth's crust, while minor amounts of neptunium and plutonium have been discovered in uranium ores.
• Actinium and protactinium are naturally occurring decay products of several thorium and uranium isotopes.

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