5.1. The nuclear model of the atom
A subsection of Physics, 0625, through 5. Nuclear physics
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In the atomic model, the atom has a central mass. Much smaller particles orbit this central mass, as shown in . central mass orbiting particles State the name given to the central mass. State the name given to the orbiting particles. State the names of the particles from which the central mass is made. and The central mass of the helium atom is identical to one of the particles emitted in radioactive decay. Which particle is this? State the name of the particles that form cathode rays.
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THEORY
2008
Paper 2, Variant 0
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