Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Atomic weight of thorium is A =323 and the atomic number is Z=90. After disintergation to last element Pb is obtained which has A=208 and Z=82. In this process the number of emitted `alpha` and `beta` particles are- - Sarthaks eConnect

Atomic weight of thorium is A =323 and the atomic number is Z=90. After disintergation to last element Pb is obtained which has A=208 and Z=82. In this process the number of emitted `alpha` and `beta` particles are-

4 and 6

6 and 4

3 and 2

2 and 3