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← ScienceWhich outcome occurs when a nickel-63 radioisotope undergoes beta decay?
A)Cobalt-63 forms with electron emission✓
B)Copper-63 forms with positron emission
C)Nickel-62 forms releasing gamma rays
D)Excited iron-59 forms emitting positrons
💡 Explanation
Beta decay transforms a neutron into a proton via weak interaction because electron emission reduces nuclear potential energy, therefore nickel-63 becomes cobalt-63, rather than emitting positrons or altering the neutron count.
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