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What part of daltons theory did Thomson disprove?
Thomson disproved Dalton's theory that atoms are indivisible and indestructible particles. Through his experiments with cathode rays, he discovered the electron, demonstrating that atoms are made up of smaller subatomic particles. This revelation indicated that atoms could be divided into even smaller components, contradicting Dalton's original assertion.
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.
What was a testable idea that J.J. Thomson developed through his experiments?
J.J. Thomson developed the testable idea that atoms contain negatively charged particles, which he called "corpuscles," now known as electrons. Through his experiments with cathode rays, he demonstrated that these particles were much smaller than atoms and had a negative charge. This led to the proposal of the "plum pudding" model of the atom, where electrons were embedded within a positively charged "soup." His work laid the foundation for the understanding of atomic structure and the existence of subatomic particles.
What part of daltons theory did Thomson disprove?
Thomson disproved Dalton's theory that atoms are indivisible and indestructible particles. Through his experiments with cathode rays, he discovered the electron, demonstrating that atoms are made up of smaller subatomic particles. This revelation indicated that atoms could be divided into even smaller components, contradicting Dalton's original assertion.
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
Did J.J.Thompson do experiments to prove atoms cannot be divided?
No, J.J. Thomson did not conduct experiments to prove that atoms cannot be divided. In fact, his work in the late 19th century, particularly with cathode rays, led to the discovery of the electron, demonstrating that atoms are indeed divisible into smaller subatomic particles. This finding was pivotal in advancing the understanding of atomic structure, contradicting the notion of indivisible atoms.
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
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.
Who first suggests that atoms are made up of smaller particles?
j.j thomson
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.
What was a testable idea that J.J. Thomson developed through his experiments?
J.J. Thomson developed the testable idea that atoms contain negatively charged particles, which he called "corpuscles," now known as electrons. Through his experiments with cathode rays, he demonstrated that these particles were much smaller than atoms and had a negative charge. This led to the proposal of the "plum pudding" model of the atom, where electrons were embedded within a positively charged "soup." His work laid the foundation for the understanding of atomic structure and the existence of subatomic particles.
How did Thomson help the understanding of atom?
He discovered that the atom contained smaller particles called electrons.
