In the case of thorium (A=232 and Z=90), we obtain an isotope of lead (A=208 and Z=82) after some radioactive disintegrations. The number of α and β particle emitted are respectively. In the case of thorium (A=232 and Z=90) we obtain an isotope of lead (A=208 and Z=82) after some radioactive disintegrations. The number of α and β particle emitted are respectively. June 5, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 30 - Nuclear Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related