Study checklist
11.1 Atoms, nuclei and radiation
Checklist
11.1.2—A simple model for the nuclear atom to include protons, neutrons and orbital
11.1.3—Nucleon number and proton number
11.1.4—Isotopes are forms of the same element with different numbers of neutrons in
11.1.5—The notation A Z X for the representation of nuclides
11.1.6—Nucleon number and charge are conserved in nuclear processes
11.1.7—The composition, mass and charge of α-, β- and γ-radiations (both β–
11.1.8—An antiparticle has the same mass but opposite charge to the corresponding
11.1.9—That (electron) antineutrinos are produced during β– decay and (electron)
11.1.10—Α-particles have discrete energies but that β-particles have a continuous
11.1.11—Α- and β-decay by a radioactive decay equation of the form UT h92 238 90 234
11.1.12—The unified atomic mass unit (u) as a unit of mass
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