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John Dalton's statement that atoms are indivisible was not entirely correct. While atoms were once thought to be the smallest indivisible units of matter, advancements in atomic theory revealed that atoms are composed of subatomic particles, such as protons, neutrons, and electrons. Additionally, atoms can undergo processes like nuclear fission, which further demonstrates that they can be divided under certain conditions. Thus, while Dalton's ideas laid the foundation for modern chemistry, the concept of indivisibility has since been revised.
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Which of daltons 4 ideas were proven incorrect?
Dalton's idea that atoms are indivisible particles has been proven incorrect, as atoms are made up of protons, neutrons, and electrons. Additionally, his idea that all atoms of the same element are identical in mass has been disproven due to the existence of isotopes.
How is Tho masons model different from Daltons?
Thomsons model (plum pudding model of negatively charged particles in a positive soup) differed from Daltons model. Dalton hypothesised that atoms were indivisible, the word atom comes from the Greek atomos cannot be cut)
What would have happend in the gold foil experiment if daltons theory had been correct?
If Dalton's theory had been correct in the gold foil experiment, all the alpha particles would have passed straight through the gold foil with little to no deflection. Dalton's theory proposed that atoms were indivisible and uniform in structure, so there would have been no interactions with the densely packed positive nucleus within the gold atoms.
What is Daltons theary about atoms?
Refer to the related link.
What are five points of Daltons atomic theory and witch where proven wrong?
Dalton's atomic theory includes the following five points: 1) All matter is composed of indivisible atoms; 2) Atoms of the same element are identical in mass and properties; 3) Compounds are formed by the combination of different kinds of atoms; 4) A chemical reaction involves the rearrangement of atoms; 5) Atoms cannot be created or destroyed in a chemical reaction. However, points one and two were proven wrong; atoms are not indivisible (they can be split into subatomic particles) and isotopes show that atoms of the same element can have different masses.
What main feature of daltons atomic model was abandoned after thomson's discoveries?
The idea that atoms are indivisible.
Which of daltons 4 ideas were proven incorrect?
Dalton's idea that atoms are indivisible particles has been proven incorrect, as atoms are made up of protons, neutrons, and electrons. Additionally, his idea that all atoms of the same element are identical in mass has been disproven due to the existence of isotopes.
Why was daltons model of the atom changed after Thompson experiment?
John Dalton's atomic theory indicated that atoms were indivisible spheres. When JJ Thomson did his work with cathode ray tubes, he discovered that atoms contain electrons, which meant that the atom is not indivisible, that there are smaller particles within
Daltons atomic theory stated that atoms?
atoms are indivisible,tiniest particles of matter. they combine in simple whole no ratios to form elements or compounds. they can neither be created, nor destroyed.
How is Tho masons model different from Daltons?
Thomsons model (plum pudding model of negatively charged particles in a positive soup) differed from Daltons model. Dalton hypothesised that atoms were indivisible, the word atom comes from the Greek atomos cannot be cut)
Which one of daltons principles were contradicted by jj Thompson?
Dalton's principle that atoms are indivisible and cannot be further subdivided was contradicted by J.J. Thomson's discovery of the electron, which showed that atoms are made up of smaller subatomic particles.
Which parts of Daltons theory were later found to be erroneous?
Dalton's theory mistakenly proposed that atoms were indivisible and that all atoms of a given element were identical in size, mass, and other properties. However, we now know that atoms can be further subdivided into protons, neutrons, and electrons, and that isotopes exist with variations in mass.
Which part of daltons atomic theory are known to be incorrect?
Dalton's atomic theory stated that atoms of a given element are identical in all respects, which we now know is incorrect as atoms can exist as isotopes with different numbers of neutrons. Additionally, atoms were thought to be indivisible, but we now know they can be broken down into subatomic particles like protons, neutrons, and electrons.
What would have happend in the gold foil experiment if daltons theory had been correct?
If Dalton's theory had been correct in the gold foil experiment, all the alpha particles would have passed straight through the gold foil with little to no deflection. Dalton's theory proposed that atoms were indivisible and uniform in structure, so there would have been no interactions with the densely packed positive nucleus within the gold atoms.
What discovery contradict components of Daltons atomic theory?
These ideas are:· "All atoms of a given element are identical" : discovery of isotopes.· "A given compound always has the same relative numbers of types of atoms" : discovery of nonstoichiometric compounds.
What part of daltons atomic theory was proved incorrect?
One part of Dalton's atomic theory that was proved incorrect is the assumption that atoms are indivisible and cannot be further subdivided. The discovery of subatomic particles such as protons, neutrons, and electrons showed that atoms are made up of smaller components.
What is Daltons theary about atoms?
Refer to the related link.
