For emission of a-particle from uranium nucleus: Shortage of two electrons in thorium is due to |
|
a) |
Conversion of electron to positron |
b) |
Adsorption in the nucleus |
c) |
Annihilation |
d) |
Combination with positron to evolve energy |
For emission of a-particle from uranium nucleus: Shortage of two electrons in thorium is due to |
|
a) |
Conversion of electron to positron |
b) |
Adsorption in the nucleus |
c) |
Annihilation |
d) |
Combination with positron to evolve energy |
Annihilation |
Combination with positron to evolve energy |