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Who was the English scientist who first offered strong evidence that atoms exist?
The English scientist who first offered strong evidence that atoms exist was John Dalton. He proposed his atomic theory in the early 19th century, which laid the foundation for modern atomic theory and our understanding of the nature of matter.
Did Dalton know that atoms contain subatomic particles?
No, Dalton believed that atoms were indivisible.
Who is the scientist who proved that atoms exist?
John Dalton is considered the scientist who developed the modern atomic theory, providing evidence for the existence of atoms through his experimentation with gases.
What nineteenth-century English scientist offered proof that atoms existed?
John Dalton, a British scientist, offered proof of the existence of atoms in the nineteenth century through his atomic theory. Dalton's theory proposed that elements are made up of atoms that are identical in mass and properties, and that compounds are formed through the combination of these atoms in simple whole-number ratios.
Which scientist offered proof that atoms exist?
The existence of atoms was proposed by the ancient Greek philosopher Democritus in the 5th century BCE. However, John Dalton provided experimental evidence for the existence of atoms in the early 19th century through his atomic theory, which explained chemical reactions in terms of the combination of atoms.
Did Dalton say that all atoms are the same size?
No, Dalton did not say that all atoms are the same size. Instead, Dalton proposed that all elements are composed of indivisible particles called atoms, and that atoms of different elements have different sizes and properties.
What laws provided evidence for the existence of atoms?
Dalton's Law of Multiple Proportions and Avogadro's Law provided indirect evidence for the existence of atoms. Dalton's Law proposed that elements combine in whole number ratios, while Avogadro's Law showed that equal volumes of gases at the same temperature and pressure contain the same number of particles, which supported the idea of atoms as the basic building blocks of matter.
Why was Daltons theory more successful then democritus's theory?
Dalton's theory was more successful than Democritus's theory because of evidence. Evidence existed to support Dalton's theory. While Democritus didn't have any evidence to back up his theory.
What did Dalton visualize Adams to be like?
Dalton visualizes "atoms" as being indestructible and that all matter were made of atoms
How was Dalton's atomic theory similar to Democritus atomic theory?
Both Dalton and Democritus proposed that matter is made up of indivisible particles called atoms that are different in size and shape. They also believed that atoms are in constant motion and can combine to form different substances.
What is the difference between Dalton's atomic theory and Democritus' atomic theory?
When an ancient Greek asked if an object could be subdivided indefinitely, some said yes and some said no. Neither side had any physical evidence for their point of view, nor did they seek any. The only contribution to modern science, apart from the question itself, was the word atomos (indivisible) that Democritus used in the debate. John Dalton made a contribution of a quite different order. He said that matter did consist of atoms; he said that all atoms of the same element were identical atoms with the same mass. He cited physical (that includes chemical) evidence to support his assertions. Dalton said more about atoms, but all based on evidence, rather than opinion. Democritus's theory was philosophy. Dalton's was science as we understand it today.
What are the differences between how Democritus and Dalton described atoms?
Democritus, a pre-Socratic philosopher, proposed that atoms are indivisible and eternal particles that make up all matter, emphasizing their qualitative differences based on shape and size. In contrast, John Dalton, in the early 19th century, formulated a more scientific atomic theory, asserting that atoms are indivisible spheres and that each element consists of identical atoms with a specific mass. Dalton also introduced the concept of chemical compounds formed by combinations of different atoms, laying the groundwork for modern chemistry. While both viewed atoms as fundamental units of matter, Dalton's model was more systematic and aligned with empirical evidence.
