5.1.2. The nucleus
A subsection of Physics, 0625, through 5. Nuclear physics
Listing 10 of 202 questions
A nucleus of americium-241 has the nuclide notation shown. 95Am Determine the number of neutrons in a nucleus of americium-241. number of neutrons = Determine the charge on a nucleus of americium-241. charge = Americium-241 decays by emitting α-particles. Put a tick in the box next to each correct statement. α-particles are electromagnetic waves. α-particles are fast-moving electrons. α-particles are helium nuclei. α-particles are stopped by a sheet of paper. α-particles can pass through 3 cm of aluminium. Americium-241 has a half-life of 432 years. A sample contains 16 mg of americium-241. Calculate the time it takes until only 4.0 mg of americium-241 are left in the sample. time = years
0625_m20_qp_32
THEORY
2020
Paper 3, Variant 2
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