8 lines
574 B
Markdown
8 lines
574 B
Markdown
[[Modern Physics]]
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# Summary
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* Atoms have a small positive nucleus made of protons and neutrons and are usually surrounded by electrons.
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* Nuclear notation: $^A_ZX$, Z protons A mass X atomic symbol
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* Ion is atom with net charge.
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* In Bohr model, Coulomb force between nucleus and electrons provides centripetal force for circular orbit: $F_e=k\frac{q_1q_2}{r^2}$ supplies $F_{net}=m\frac{v^2}{r}$
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* Circumference must equal a whole number of de Broglies wavelength: $n\lambda=2\pi r$
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* Atomic structure here is only defined as energy levels, no probability functions yet. |