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How relevant is John Dalton's atomic theory to today's understanding of the atom?
He proposed that each element consists of atoms of a single, unique type, and that these atoms can join together to form chemical compounds.[17][18] Dalton is considered the originator of modern atomic theory.[19]
Dalton's atomic hypothesis did not specify the size of atoms. Common sense indicated they must be very small, but nobody knew how small. Therefore it was a major landmark when in 1865Johann Josef Loschmidt measured the size of the molecules that make up air.
My opinion is there is no relevant between John Dalton's atomic theory today's understanding the atom.
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Note: John Joseph Thomson - He is credited for the discovery of the electron and of isotopes, and the invention of the mass spectrometer
Ernest Rutherford - he postulated that atoms have their positive charge concentrated in a very small nucleus,[3] and thereby pioneered theRutherford model, or planetary, model of the atom.
Niels Bohr -
- The Bohr model of the atom, the theory that electrons travel in discrete orbits around the atom's nucleus.
- The shell model of the atom, where the chemical properties of an element are determined by the electrons in the outermost orbit.
- The liquid drop model of the atomic nucleus.
- Identified the isotope of uranium that was responsible for slow-neutron fission James Chadwick - James Chadwick was the first man to discover the neutron-the neutrally charged particle of the nucleus (which also contains protons, positively charged particles). Electrons whizz around the nucleus (which is the heaviest part by far of the atom) on "orbits".
Note: There are comments associated with this question. See the Discuss:What_was_james_chadwick_contribution_to_the_atomto add to the conversation.
What else can I help you with?
Why was daltons model accepted?
Dalton's atomic theory or model was accepted despite errors. This is because his theory provided a logical explanation of concepts and led the way to new experimentations.
How did Dalton's Atomic Theory effect culture and living conditions?
Daltons atomic theory changed the way people looked at everything in science,Dalton proved that matter is not able to be broken down past a specific point, (the atom) and that all matter is made up of atoms and now medicine and science have been able to be better, building materials stronger,ect, ect
What was James Clerk Maxwell's atomic model?
James Clerk Maxwell did not propose a traditional atomic model like those of Dalton or Thomson; instead, he is best known for his formulation of the kinetic theory of gases and the development of Maxwell's equations, which describe electromagnetism. His work laid the groundwork for understanding the behavior of particles in gases, illustrating that temperature is related to the average kinetic energy of particles. While he did not create a specific atomic model, his contributions significantly advanced the understanding of atomic theory in the context of thermodynamics and electromagnetic theory.
What were Democritus' Achievements?
Democritus achievements are his atomic theory and his book -on the little order of the world- which describes his atomic theory.
Did the ancient Greeks do scientific experiments on Democritus's atomic theory?
The ancient Greeks did not perform any experiments to test the atomic theory proposed by Democritus. To the ancient Greeks the atomic theory was a part of philosophy, not science.
How does Daltons atomic theory explain the law of definite proportions?
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How did daltons atomic theory lead to the different model scientists have today?
Dalton's theory was irrelevant to the total compensation of of the Atomic Mass.
Why scientists accepted daltons atomic theory but not the idea of an atom proposed by the Greek philosopher?
the Greek Philosophers did not test their theory.
Which tenet of Daltons atomic theory did Thomson disprove?
Atoms cannot be divided into smaller particles.
How can an stm help improve daltons theory?
An STM (scanning tunneling microscope) can help improve Dalton's atomic theory by providing visual evidence of individual atoms and their arrangements on surfaces. This experimental data can offer insights into the precise structure and behavior of atoms, supporting or refining Dalton's ideas based on empirical observation. Additionally, STM allows for the direct observation of atomic interactions and bonding, which can lead to a deeper understanding of atomic behavior beyond what Dalton's theory originally proposed.
What experiment did daltons use for his atomic theory?
dalton wasnt the one who experimented with gold, rutherford was the one who did the gold foil experiment.
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 daltons model accepted?
Dalton's atomic theory or model was accepted despite errors. This is because his theory provided a logical explanation of concepts and led the way to new experimentations.
What is one main point of daltons atomic theory?
One main point of Dalton's atomic theory is that all matter is composed of indivisible particles called atoms, which cannot be created or destroyed in chemical reactions. Dalton proposed that atoms of a given element are identical in mass and properties, while atoms of different elements differ in these characteristics. This theory laid the foundational understanding of chemical reactions as the rearrangement of atoms.
What idea compromised the acceptance of daltons atomic theory work?
One key idea that compromised the acceptance of Dalton's atomic theory was the notion that atoms are indivisible and indestructible. Subsequent discoveries in chemistry and physics, particularly the identification of subatomic particles (such as electrons, protons, and neutrons), demonstrated that atoms are not the smallest units of matter and can indeed be split or transformed in nuclear reactions. This revelation necessitated refinements to Dalton's original theory, leading to a more nuanced understanding of atomic structure and behavior.
Did daltons atomic theory include the idea that all atoms of all elements are the same size?
No, Dalton's atomic theory did not include the idea that all atoms of all elements are the same size. Instead, he proposed that atoms of different elements have different sizes and weights.
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.
