10 Questions
What experiment did Dalton conduct to support his atomic theory?
Investigating pressure and properties of gases
What was Dalton's atomic model known as, and how did it improve upon previous models?
Billiard Ball Model; It proposed that atoms were small, hard spheres and were the smallest particles of matter.
Who is credited with the discovery of electrons and proposed the Plum Pudding Model of the atom? Briefly explain the significance of this model.
Thomson; Thomson's model helped us understand that atoms are made of smaller, subatomic particles.
What is the significance of spectral lines in the context of atomic theory?
Spectral lines are evidence of electrons moving between energy levels, emitting and absorbing light, supporting the concept of electron orbits.
How did Bohr's model improve upon Rutherford's planetary model of the atom?
Bohr's model modified the planetary model by introducing fixed energy levels for electrons, contrary to the continuous orbits in Rutherford's model.
What contribution did James Chadwick make to the atomic theory?
Chadwick proposed the existence of neutrons, explaining the stability of the nucleus and the concept of isotopes.
What is the name of the English meteorologist and Chemist known for introducing atomic theory?
Dalton
In what year did Dalton publish his theory 'A New System of Chemical Philosophy'?
1808
According to Dalton's atomic theory, what are compounds made up of?
Combinations of atoms of two or more elements in simple numerical ratios
What important concept did Dalton introduce in his atomic theory regarding the mass of atoms of the same element?
All atoms of a given element are identical in mass and properties
Explore Dalton's theory and experiments supporting it, including the investigation of pressure and properties of gases. Discover how the total pressure of a mixture of gases is the sum of the pressures of each individual gas, providing evidence for the existence of atoms.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
