Topic 2: Nuclear Chemistry
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11 Terms
The stability of an isotope depends on the ratio of __ in the nucleus.
Protons to neutrons.
What occurs when the nuclei spontaneously decay?
They emit radiation.
Stable isotopes typically have a __ proton to neutron ratio.
1:1.
All elements with atomic number __ are radioactive.
83+.
The process in which a change in the nucleus of an atom transforms it into a new type of atom is called __.
Transmutation.
Artificial transmutation requires the bombardment of a nucleus by __.
High energy particles.
Nuclear reactions can include natural and artificial decay, nuclear fission and __.
Nuclear fusion.
What happens during nuclear fission?
The nucleus of an atom is split.
Nuclear fusion combines two __ nuclei to form heavier nuclei.
Light.
What is required for nuclear fusion to occur?
High temperatures.
The energy released from nuclear reactions is __ than that released from chemical reactions.
Much greater.
