Identify the odd one out:
Uranium, Helium, Thorium, Radium

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Solution

All elements, except Helium are radioactive metals. Helium is a noble gas i.e. inert gas.

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Q. A nucleus of uranium decays at rest into nuclei of thorium and helium. Then:

A uranium nucleus at rest decays into a thorium nucleus and a helium nucleus, as shown below. Which of the following is true?

$_{92}^{235} U \to_{90}^{231} T h +_{2}^{4} H e$

It is advised that India should pursue research and development on thorium instead of Uranium as the future fuel of nuclear energy. What advantages does the thorium hold over uranium?

1, 2 and 4
2 and 3
1 and 3
All of these

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Identify the odd one out:Uranium, Helium, Thorium, Radium

All elements, except Helium are radioactive metals. Helium is a noble gas i.e. inert gas.

Identify the odd one out:
Uranium, Helium, Thorium, Radium