Quiz on the History of Atomic Theory

Who is credited with the early atomic theory around 400 BC?

• Thomson

• Democritus

• Dalton

• Aristotle

What did Dalton's atomic theory propose about atoms?

• Atoms have no mass

• Atoms are indivisible

• Atoms can be created

• Atoms are made of electrons

In which year did J.J. Thomson discover the electron?

• 1924

• 1897

• 1911

• 1803

What is the primary component of Dalton's atomic model?

• Indivisible atom

• Electron cloud

• Nucleus

• Proton

Which atomic model introduced the concept of energy levels for electrons?

• Thomson model

• Wave model

• Bohr model

• Rutherford model

What does the wave model of the atom emphasize?

• Electrons are particles

• Electrons have fixed orbits

• Electrons exhibit wave-like behavior

• Electrons are indivisible

What phenomenon explains why no two electrons can have the same set of four quantum numbers?

• Pauli Exclusion Principle

• Heisenberg Uncertainty Principle

• Quantum Superposition

• Wave-Particle Duality

Which of the following statements is true according to Rutherford's model?

• Electrons are in fixed orbits

• Atoms are mostly empty space

• Atoms are indivisible

• Electrons are located in the nucleus

What did the Stern-Gerlach experiment demonstrate?

• Electrons have quantized spin states

• Electrons have mass

• Electrons are negatively charged

• Electrons can be divided

Which atomic theory became a foundation for modern chemistry?

• Bohr's theory

• Dalton's theory

• Rutherford's theory

• Thomson's theory