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Which tenet of Daltons atomic theory did Thomson disprove?
Atoms cannot be divided into smaller particles.
Thomson's experiments were significant in that they questioned?
whether matter is made up of atoms. whether the atom has a positive or negative charge. whether atoms will form compounds with other atoms. whether the atom could be broken up into smaller units.
Why do you think Thomson hypothesized that electrons must come from inside an atom?
Thomson had two pieces of evidence: 1- No matter what metal he used for the disk, the particles produced were indentical. 2- The particles had about 1/2000 the mass of a hydrogen, the lightest atom. These experiments provided the first evidence that atoms are made of even smaller particles.
How did Thomson help the understanding of atom?
He discovered that the atom contained smaller particles called electrons.
What did Thomson used a cathode ray to discover the what?
J.J. Thomson used a cathode ray to discover the electron in 1897. Through his experiments, he demonstrated that cathode rays were composed of negatively charged particles, which were much smaller than atoms. This groundbreaking discovery led to the understanding of atomic structure and the development of the field of particle physics. Thomson's work fundamentally changed the perception of matter and laid the groundwork for modern atomic theory.
Which tenet of Daltons atomic theory did Thomson disprove?
Atoms cannot be divided into smaller particles.
What findings led JJ Thomson to infer that particles are smaller than atoms do exist?
Particles are smaller
What evidence supported Thomson's hypothesis that negative particles he observed came from inside atoms.?
Thomson had two pieces of evidence: 1- No matter what metal he used for the disk, the particles produced were indentical. 2- The particles had about 1/2000 the mass of a hydrogen, the lightest atom. These experiments provided the first evidence that atoms are made of even smaller particles.
How did the Thomson's experiment change Dalton's atomic model?
Thomson discovered that the atom contained smaller particles called electrons
Who first suggests that atoms are made up of smaller particles?
j.j thomson
Thomson's experiments were significant in that they questioned?
whether matter is made up of atoms. whether the atom has a positive or negative charge. whether atoms will form compounds with other atoms. whether the atom could be broken up into smaller units.
Why do you think Thomson hypothesized that electrons must come from inside an atom?
Thomson had two pieces of evidence: 1- No matter what metal he used for the disk, the particles produced were indentical. 2- The particles had about 1/2000 the mass of a hydrogen, the lightest atom. These experiments provided the first evidence that atoms are made of even smaller particles.
What did Thomson conclude about the particles in cathode rays?
Thomson concluded that cathode rays are made up of negatively charged particles, which he called electrons. He determined that these electrons are a fundamental component of matter and have a much smaller mass compared to atoms.
How did Thomson help the understanding of atom?
He discovered that the atom contained smaller particles called electrons.
Who first determined that atoms contained even smaller particles?
Thomson, which is considered as the discoverer of electrons.
How did Thomson help our understanding of the atom?
He discovered that the atom contained smaller particles called electrons.
What evidence supported thomsons hypothesis that the negative particles he observed from inside atoms?
Thomson had two pieces of evidence: 1- No matter what metal he used for the disk, the particles produced were indentical. 2- The particles had about 1/2000 the mass of a hydrogen, the lightest atom. These experiments provided the first evidence that atoms are made of even smaller particles.
