total no. of particles at start =1+7=8 N/No =1/8 =(1/2)n =>n=3 So, t=3*2=6
78) A radioactive element X with a half life of 2 hours decays giving a stable element Y. After a time of t hours ratio of X to Y atoms is 1:7, then the value of t is
Answer is:
14
Explanation:
Related Atoms and Nuclei MCQ with Answers
Answer is:
alpha particles
Explanation:
An electric field can deflect alpha particles.
Answer is:
(ZA)X?where X is the chemical symbol of the species
Explanation:
Nuclear species or nuclides are shown by the notation (ZA)X?where X is the chemical symbol of the species
Answer is:
Positron
Explanation:
The?positron?or antielectron is the antiparticle or the antimatter counterpart of the electron. The?positron?has an electric charge of +1 e, a spin of 1/2, and has the same mass as an electron.
Answer is:
41282
Explanation:
The half-life of Plutonium is given to be 24000 years. It is stored for a period of 72000 years. So, the number of half-life periods = 72000/24000 = 3 The fraction that remains is given by 1/23 = 1/8