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प्रश्न
Complete the following equation describing nuclear decay.
\[\ce{_90^228Th->\alpha { +}}\] _____
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उत्तर
\[\ce{_90^228Th->_2^4\alpha { +} _88^224Ra}\]
Here, α particles is emitted and radium is formed.
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\[\ce{_88^226Ra->_2^4\alpha {+}}\] ______.
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