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Question
A radioactive carbon nucleus 6C14 emits a β-particle to form a nitrogen nucleus. Represent the change by an equation showing the atomic and mass number of each elements.
Solution
\[\ce{\underset{\text{6 protons 8 neutrons}}{_6^14C} ->\underset{\text{7 protons 7 neutrons}}{_7^14N} + \underset{\text{β-particles}}{_-1e^0}}\]
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