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With regard to the role of rich nations,dependency theory
Gold Foil
Thin sheets of gold used in scientific experiments, most famously in Rutherford's gold foil experiment which led to the discovery of the nucleus.
Sub-Atomic Particle
Particles smaller than atoms, including protons, neutrons, and electrons.
Atoms Produce Light
The phenomenon where atoms emit light when electrons jump from higher to lower energy levels, releasing photons.
Continuous Spectrum
A seamless spectrum of light (or other electromagnetic radiation) in which every wavelength within a certain range is represented.
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