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J.J. Thomson provided evidence about the structure of an atom through his discovery of the electron using cathode ray tubes. His experiments showed that electrons are negatively charged particles and are present in all atoms, leading to the development of the plum pudding model of the atom.
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The scattering of alpha particles by thin metal foils established that?
the atom has a dense, positively charged nucleus at its center. This experiment, conducted by Ernest Rutherford, provided evidence for the nuclear model of the atom and disproved the plum pudding model proposed by J.J. Thomson.
What discovery was J.J. Thomson noted for?
J.J. Thomson is noted for discovering the electron, a fundamental particle found in all atoms. This discovery led to the development of the plum pudding model of the atom and revolutionized our understanding of atomic structure. Thomson's work laid the foundation for future advancements in the field of particle physics.
What J J Thomson was famous for?
he was a British scientists that discovered negatively charged particles, electrons, inside the atom. he proposed a possible structure of the atom (atomic model) called the plum pudding. you can google some images
How did atom research conducted by john Dalton sir Joseph john Thomson sir ernest Rutherford and niels bohr impact scientific thought throughout the history of science?
The atom research conducted by John Dalton, J.J. Thomson, Ernest Rutherford, and Niels Bohr contributed significantly to our understanding of the structure of the atom. Dalton proposed the atomic theory, Thomson discovered the electron, Rutherford formulated the nuclear model of the atom, and Bohr developed the planetary model of the atom. These discoveries paved the way for modern atomic theory and revolutionized our understanding of matter and chemical reactions.
How do scientists know about the structure of an atom?
Scientists know about the structure of an atom through experimentation, such as using techniques like X-ray crystallography and spectroscopy to study the behavior of atoms. Theories like quantum mechanics also provide a framework for understanding the atom's structure based on experimental evidence.
Who provided the evidence that atom contains subatomic particle?
It was J. J. Thomson (Joseph John Thomson)
What did J. J. Thomsons experiments provided evidence about an atom?
J. J. Thomson's experiments provided evidence for the existence of electrons as subatomic particles within the atom. This led to the plum pudding model of the atom, where electrons were embedded in a positively charged "pudding." These experiments laid the foundation for our understanding of atomic structure.
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.
. J. J. Thomson and experiments provided evidence that an atom .?
a cathode ray
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.
What evidence convinced J.J Thomson that an atom consist of more than electrons?
The evidence for JJ Thomson was that the plum pudding model could not predict why atoms absorbed and emitted spectral lines.
Who provided evidence for the nucleus in an atom?
Ernest Rutherford
Who provided evidence for the existence of the nucleus in an atom?
Ernest Rutherford
The scattering of alpha particles by thin metal foils established that?
the atom has a dense, positively charged nucleus at its center. This experiment, conducted by Ernest Rutherford, provided evidence for the nuclear model of the atom and disproved the plum pudding model proposed by J.J. Thomson.
In his proposed model of the atom J.J. Thomson imagined the atom contained .?
Thomson is responsible for discovering that an atom contains electrons.
What evedence convinced JJ Thomson that an atom consists of more than electrons?
The evidence for JJ Thomson was that the plum pudding model could not predict why atoms absorbed and emitted spectral lines.
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.
