The half life of a radioactive substance is 10 days. This means that 7/8 part of the mass of the substance disintegrates in 30 days
119) The half life of a radioactive substance is 10 days. This means that
Answer is:
7/8 part of the mass of the substance disintegrates in 30 days
Explanation:
Related Atoms and Nuclei MCQ with Answers
Answer is:
91234
Explanation:
Beta-minus emission changes a neutron into a proton, so the atomic number rises by one. The mass doesn't change
Answer is:
Its atomic number remains the same but its actual mass decreases
Explanation:
When a nucleus emits a photon, then Its atomic number remains the same but its actual mass decreases
Answer is:
non-luminous heavenly bodies
Explanation:
Planets don't have their own light so they are said to be non-luminous.