Question
A radioactive nucleus X undergoes spontaneous decay in the sequence , where Z is the atomic number of element X. The possible decay particles in the sequence are :
Options :
α, β⁻, β⁺
α,β⁺,β⁻,
β⁺, α, β⁻
β⁻, α, β⁺
Answer :
β⁺, α, β⁻
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