If ²⁰⁴Tl (Z = 81) emits a $\beta$^- particle from its nucleus: A) stable Tl is formed B) ²⁰²Hg (Z = 80) is formed C) ²⁰⁴Pb (Z = 82) is formed D) radioactive Tl is formed E) ¹⁹⁷Au (Z = 79) is formed

Question

Quizplus · Accepted Answer

The emission of a beta particle from the nucleus results in an increase of the atomic number (Z) by 1. The beta particle is an electron (e-) that is formed when a neutron (n) in the nucleus is converted into a proton (p), while emitting an electron and an anti-neutrino. In the given case, the emission of a beta particle from Tl (Z=81) would result in the formation of an atom with Z=82. Accordingly, ²⁰⁴Pb (Z = 82) is formed.

If 204Tl (Z = 81) Emits A β\betaβ - Particle from Its Nucleus: A) Stable Tl Is Formed

If ²⁰⁴Tl (Z = 81) Emits A $\beta$ ^- Particle from Its Nucleus:
A) Stable Tl Is Formed