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Title: Atomic Physics Question Post by: princess001 on Apr 11, 2013 1. A neutron decays into a proton and an electron. Write the decay reactions of a neutron both nucleons and quarks. You will need to show two reactions. (2 marks)
2. How is the conservation of energy and mass applied to nuclear decay? ( 2marks) Title: Re: Atomic Physics Question Post by: bio_man on Apr 11, 2013 Hi Princess001...
The law of conservation of energy states that the total amount of energy in an isolated system remains constant over time. In nuclear decay, the amount of energy before and after the decay remain constant. In fact, charge and atomic mass number are conserved. Mass itself (atomic mass units, grams or kg) is not conserved, since in each process some mass is converted to energy according to the relationship E = mc2. So, you can convert energy into mass, and vice versa. Title: Re: Atomic Physics Question Post by: princess001 on Apr 12, 2013 thanks bio man
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