4320997
| Questão | Responda |
| what is another name for the nucleon number | mass number |
| what is the name give to the number of protons in a nucleus | atomic number |
| what particles are emitted in beta minus decay | an electron and an electron antineutrino |
| how does the mass number of the nucleus change after beta minus decay | remains unchanged |
| what is the approximate diameter of an atom an the approximate diameter of the nucleus of an atom | 10^-10 and 10^-14 metres respectively |
| what experiment established the existence of the nucleus | Rutherford's alpha particle scattering experiment using gold leaf |
| what do alpha particles consist of | alpha particle is a helium nucleus, two protons and two neutrons |
| what fundamental force tries to push the nucleons of a nucleus apart and what force holds them together | the electromagnetic and the strong nuclear force |
| which of the two forces has a longer range | the electromagnetic |
| is a neutron a fundamental particle, if not why not | no because it is made up of quarks |
| name three fundamental particles | quarks, electrons, neutrinos |
| the LHC or large hadron collider in CERN, is the world's most powerful particle accelerator. What is a Hadron. Give some examples. | hadron is any particle made up of quarks. For example baryons such as the neutron and proton and mesons. |
| define the binding energy of a nucleus | nuclear binding energy is the energy required to disassemble the nucleus into its component parts |
| what is the binding energy per nucleon | the binding energy per nucleon is the binding energy of the nucleus divided by the number of nucleons |
| sketch the graph of the binding energy per nucleon against the nucleon number |
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