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Modern Physics: The Atom, the Nucleus, and Year-End Synthesis — Homework
Identify whether each problem is about atomic energy levels, nuclear decay, or half-life before setting it up.
- 1.Find the energy of the photon absorbed when a hydrogen electron jumps from n=1 to n=3.
- 2.A radioactive sample has a half-life of 4 days and starts at 60 g. Find the amount remaining after 16 days.
- 3.Write the balanced nuclear equation for the alpha decay of Radium-226 (atomic number 88) into Radon, and verify that mass number and atomic number are each conserved.
- 4.Explain why half-life is described using probability and large numbers of atoms rather than as a prediction for any one specific atom.
- 5.Across this whole year of physics, choose TWO units that connect through a shared big idea (for example: conservation of energy appearing in both mechanics and circuits, or the same inverse-square form showing up in both gravitation and Coulomb's law), and explain the connection in 3-5 sentences.
🌲 Homeschool of the FutureEleventh Grade · Science · week 36 homework