ATOMS, ATOMS, ATOMS!

Who was the first person to conduct an experiment exploring the structure of the atom?

• Ernest Rutherford

• J.J. Thomson

• Joseph John Dalton

• Niels Bohr

What did J.J. Thomson discover through his cathode ray experiment?

• Protons

• Electrons

• Neutrons

• Alpha particles

Which model of the atom did J.J. Thomson propose based on his experiments?

• Bohr model

• Plum pudding model

• Nuclear model

• Rutherford model

Who conducted the gold foil experiment, and what did it reveal about the atom's structure?

• J.J. Thomson; existence of protons

• Niels Bohr; presence of electrons

• Ernest Rutherford; discovery of the nucleus

• Max Planck; quantization of energy levels

What did Rutherford's atomic model become known as?

• Plum pudding model

• Bohr model

• Nuclear model

• Electron cloud model

What are the three subatomic particles that make up an atom?

• Electrons, protons, and neutrons

• Positrons, electrons, and photons

• Alpha particles, beta particles, and gamma rays

• Quarks, leptons, and bosons

Who proposed the term "atomos" for small, indivisible particles in the fifth century BC?

• Aristotle

• Dalton

• Leucippus and Democritus

• Anaximenes

What did Aristotle propose as the fundamental building blocks of matter, opposing the idea of atoms?

• Electrons, protons, and neutrons

• Elements of fire, earth, air, and water

• Quarks and leptons

• Photons and positrons

What was Dalton's model of an atom called, and how did he envision atoms in this model?

• Solid sphere model; atoms as small, hard spheres

• Liquid core model; atoms as liquid droplets

• Quantum model; atoms as energy waves

• Shell model; atoms with concentric energy levels

What did Ernest Rutherford name the positively charged subatomic particles he discovered in the gold foil experiment?

• Electrons

• Neutrons

• Protons

• Alpha particles