What did Democritus and Dalton agree on?
His ideas were similar to those of Democrites in that he believed that atoms were indivisible and that atoms of one substance are all alike but are different from atoms of another substance. Dalton, unlike Democritus, thought that atoms of one element could change into atoms of another element.
How did Dalton transform Democritus ideas?
How did the concept of the atom change from the time of Democritus to the time of John Dalton? Democritus reasoned that atoms were indivisible and indestructible. By using experimental methods, Dalton transformed Democritus’s ideas on atoms into scientific theory.
What advantage did John Dalton have over Democritus?
Dalton had an advantage over Democritus – he had some experimental data to back up his ideas. So Dalton could present his thinking with “here is what I believe to be true and here are the experiments that support my theory”.
What did Dalton do that Democritus did not do?
What did Dalton do in developing his theory that Democritus did not do? He experimented with different substances and published his atomic theory. In order to explain this, atoms must be considered mostly empty space, with a tiny part made of highly dense matter.
Why an atom Cannot be further divided?
Chemical compounds always contain the same proportion of elements by mass, regardless of amount, which provided further support for Proust’s law of definite proportions. Atoms of different elements differ in size, mass, and other properties. Atoms cannot be subdivided, created, or destroyed.
How is the Democritus atomic theory different from the Dalton atomic theory?
Therefore, the major difference between Democritus and Dalton atomic theory is that the Democritus atomic theory is an ancient theory which scientists later refined and elaborated whereas the Dalton atomic theory is a comparatively modern, scientific theory that we cannot discard due its important statements.
How did John Dalton contribute to the atomic theory?
In addition, the discovery of subatomic particles has shown that atoms can be divided into smaller parts. However, Dalton’s importance in the development of modern atomic theory has been recognized by the designation of the atomic mass unit as a Dalton.
How did John Dalton come up with the law of multiple proportions?
Dalton developed the law of multiple proportions (first presented in 1803) by studying and expanding upon the works of Antoine Lavoisier and Joseph Proust. Proust had studied tin oxides and found that their masses were either 88.1% tin and 11.9% oxygen or 78.7% tin and 21.3% oxygen (these were tin (II) oxide and tin dioxide respectively).
What was John Dalton’s law of Conservation of mass?
With the development of the law of conservation of mass and the law of definite proportions, John Dalton developed a new idea as the law of multiple proportions.