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No, atomic theory dates back to the 4'th century BC, approxixmately 2500 years ago with the musings of a Greek philosopher, Democrates. We're still not quite certain whether or not it is correct, but it has hung in there for all these years (in various refinements), and no other theory has successfully replaced it.
No, the concept of atoms has been around for centuries, originating in ancient Greek philosophy. The modern understanding of atoms as the basic building blocks of matter was developed in the late 19th century through the work of scientists like John Dalton and J.J. Thomson.
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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.
Why did Dalton say that a chemical reaction is a rearrangement of atoms?
Dalton proposed that a chemical reaction is a rearrangement of atoms because he believed that in chemical reactions, atoms are not created or destroyed, but rather rearranged to form different compounds. This idea helped to explain how different elements combine to form new substances without changing the total number of atoms present.
Do chemical reactions produce new atoms?
No, chemical reactions do not produce new atoms. Atoms are rearranged in chemical reactions to form new substances, but the number of atoms remains constant before and after the reaction. This is known as the Law of Conservation of Mass.
What happens to the atoms of the starting substance during a chemical reaction?
During a chemical reaction, the atoms of the starting substance rearrange to form new substances. The atoms themselves are not created or destroyed, but they may bond in new combinations resulting in different molecules.
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 idea about the atom change when new evidence was discovered?
atoms cannot be divided
What is Democrotis's idea?
to have an idea about atoms?
The idea that everything is made of small particles is known as the?
atoms
Was Dalton th first person to suggest the idea of atoms?
It was not John Dalton who first suggested the idea of atoms. It was the Greek philosopher and mathematician Democritus who first suggested the existence of atoms.
Why Democritus's idea of atoms was dismissed?
Aristotle
The idea of atoms dates back to?
the Greeks. Atoms were thought to be the last indivisible units, but we've learnt how to split atoms.
How does the idea of atoms explain the priciple of conservation of matter?
The idea of atoms explains the conservation of matter. In chemical reactions, the number of atoms stays the same no matter how they are arranged. So, their total mass stays the same.
What is the idea of atoms dates back to?
ancient Greece
How old is the idea that matter is composed of atoms?
2500
What year does the idea of atoms date back to?
the greek years
What was idea Dalton taught about atoms?
All atoms of one type were identical in mass and properties. (Apex 2021)
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.
