Atomic Structure — Chapter Summary

Atoms are made up of three

Atoms are made up of three fundamental particles: electrons (negatively charged), protons (positively charged), and neutrons (neutral). Electrons are

Based on the alpha

Based on the alpha-particle scattering experiment using a gold foil, Rutherford proposed that atoms have a small, dense, positively charged nucleus at

Niels Bohr proposed that electrons move

Niels Bohr proposed that electrons move in fixed circular orbits (stationary states) around the nucleus without emitting energy. Electrons can jump be

Louis de Broglie proposed that matter

Louis de Broglie proposed that matter, like light, has dual nature — it can behave as both a wave and a particle. The wavelength associated with a par

It states that it is impossible

It states that it is impossible to simultaneously determine the exact position and momentum of a subatomic particle like an electron. Mathematically,