(a) The half-life of 56/25 Mn is 9.3 x 10(^3)S. What does the statement mean?
(b) Give the three types of radiation that are usually emitted by radioactive substances.
Explanation
(a) The time taken for half amount of (^{56}Mn) to decompose is the half life which is 9.3 x 10(^{3})s
(b) They are the Alpha, the Beta and Gamma particles.