Which of the following isotopes undergoes positron decay to form ₂₄Cr?

Name: Which of the following isotopes undergoes positron decay to form 24 Cr?
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Question

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The given product ₂₄Cr suggests that the parent isotope undergoes beta+ decay, also known as positron decay. The only isotope among the choices that undergoes positron decay is 11eb6c44_580c_02a1_8d9d_2bbe0f29d5d4_TB8310_11, which is Carbon-11 (11C).

Which of the Following Isotopes Undergoes Positron Decay to Form