Answer:
₅₃I¹²³ + ₋₁e⁰ => ₅₂Te¹²³
Explanation:
Nuclear decay equations require that the mass and charge are conserved. That is, by mass I-123 + e⁻ => Te-123 & by charge ₅₃I + ₋₁e => ₅₂Te. Together, the nuclear decay equation becomes ₅₃I¹²³ + ₋₁e⁰ => ₅₂Te¹²³.