Nuclear Physics and RadioactivityHard
Question
An energy of 24.6 eV is required to remove one of the electrons forms a neutral from a neutral helium atom The energy (In eV) required to remove both the electrons from a neutral helium atom is
Options
A.38.2
B.49.2
C.49.2
D.79.0
= 79.0eVMore Nuclear Physics and Radioactivity Questions
The half life of a radioactive element is 30 days, in 90 days the percentage of disintegrated part is :-...The half life of a radioactive substance is 20 minutes. The approximate time interval (t2 - t1) between the time t2 when...The half - life of the radioactive radon is 3.8 days. The time , at the end of which 1 / 20th of the radon sample will r...Count rate measured for a radioactive sample is 128 counts/s at t = 0 and 32 counts/s at t = 1 hr. What will be count ra...Mass equivalent to energy 931 MeV is...