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What part of John Dalton's theory did J.J Thomson disprove?
J.J. Thomson's discovery of the electron through his cathode ray experiment discredited John Dalton's theory that atoms are indivisible and indestructible, as Thomson showed that atoms are composed of subatomic particles. This led to the development of the plum pudding model of the atom.
Why did a lot of time go by between Thomsons work and Daltons?
The gap between Thomson's work on the electron and Dalton's work on atomic theory can be attributed to advancements in experimental techniques and theoretical understanding. Thomson's discovery of the electron in the late 19th century provided the foundation for understanding the subatomic world, which set the stage for Dalton's work on atomic theory in the early 19th century. Additionally, the development of chemistry as a science and the accumulation of experimental evidence over time allowed for a more comprehensive understanding of atomic structure and behavior.
Why was J.J Thomson's discovery an important step in the development of the atomic theory?
J.J. Thomson's discovery of the electron in 1897 was crucial in the development of the atomic theory because it showed that atoms were not indivisible, as previously believed. Instead, atoms were composed of smaller subatomic particles, revolutionizing the understanding of atomic structure and paving the way for the later models of the atom.
In the late 1800s experiments using cathode ray tubes led to the discovery of the electrons?
Yes, experiments with cathode ray tubes in the late 1800s, particularly by scientists like J.J. Thomson, led to the discovery of electrons. Thomson's experiments demonstrated that cathode rays were composed of negatively charged particles, which were later named electrons. This discovery laid the foundation for modern atomic theory.
What did J J Thomson work on?
J.J. Thomson is best known for his discovery of the electron, which he identified as a subatomic particle. This work laid the foundation for modern atomic theory and helped establish the existence of subatomic particles. Thomson's research also contributed to the development of the first model of an atom.
Which tenet of Daltons atomic theory did Thomson disprove?
Atoms cannot be divided into smaller particles.
How did Thomson discovery change Dalton's atomic theory?
Thomson's discovery of the electron showed that there were things smaller than the atom that could be removed from the atom. Therefor the atom was not an "uncuttable" object as Dalton had proposed.
What part of daltons theory was modified after discovery of isotopes?
Atoms may not be changed into other atoms.
What part of daltons theory was modified after the discovery of isotope?
Atoms may not be changed into other atoms.
What was the name of the discovery that disproved Dalton's theory?
Thomson disproved Dalton's theory because he discovered electrons.
Which discovery did j.j Thomson make that improved upon Dalton atomic theory?
that atoms can be broken
How did the discovery of the nucleus change Thomson's theory?
The discovery of the nucleus showed that atoms are not indivisible as Thomson had previously suggested. It led to the development of the new atomic model proposed by Rutherford, which included a dense, positively charged nucleus at the center with electrons orbiting around it. This model replaced Thomson's "plum pudding" model of the atom.
What part of John Dalton's theory did J.J Thomson disprove?
J.J. Thomson's discovery of the electron through his cathode ray experiment discredited John Dalton's theory that atoms are indivisible and indestructible, as Thomson showed that atoms are composed of subatomic particles. This led to the development of the plum pudding model of the atom.
When did Marie and Pierre curie discover their atomic theory?
Marie and Pierre Curie did not discover the atom. John Dalton is credited with the discovery of the atom and J.J. Thomson with the discovery of the electron.
Why was J.J Thomson's discovery an important step in the development of the atomic theory?
J.J. Thomson's discovery of the electron in 1897 was crucial in the development of the atomic theory because it showed that atoms were not indivisible, as previously believed. Instead, atoms were composed of smaller subatomic particles, revolutionizing the understanding of atomic structure and paving the way for the later models of the atom.
How did Thomson's discovery change Dalton's atomic theory?
Thomson discovered that atoms can be cut. He found this out while studying rays traveling between charged metal plates in a vacuum tube. He discovered that the rays were consisted of negatively charged particles. He had just discovered electrons. He discovered all of this on a trip from America. Since electrons are so small, he believed that they could only be from inside of the atom. Since Thomson's discovery of the electron, John Dalton's theory that atoms are indivisible had to be changed.
Why did a lot of time go by between Thomsons work and Daltons?
The gap between Thomson's work on the electron and Dalton's work on atomic theory can be attributed to advancements in experimental techniques and theoretical understanding. Thomson's discovery of the electron in the late 19th century provided the foundation for understanding the subatomic world, which set the stage for Dalton's work on atomic theory in the early 19th century. Additionally, the development of chemistry as a science and the accumulation of experimental evidence over time allowed for a more comprehensive understanding of atomic structure and behavior.
