Question

When Iodine-131 emits a β particle (beta particle), what nuclide is produced? *

Answer 1

When Iodine-131 emits a β particle will produce Xe-131

Further explanation

Radioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,  

• alpha α particles ₂He⁴
• beta β ₋₁e⁰ particles
• gamma particles ₀γ⁰
• positron particles ₁e⁰
• neutron ₀n¹

So for reaction Iodine-131 :

$\tt _{53}^{131}I\rightarrow _{-1}^0\beta +_{54}^{131}Xe$

Answer 2

Question, Answer, and Explanation are within the picture of files: