5 Questions
What is the concept of atomic theory?
The concept of atomic theory is that everything is made up of tiny particles that cannot be broken down any further.
Who proposed the idea of atomic theory?
Democritus, a philosopher from ancient Greece, proposed the idea of atomic theory.
How did John Dalton describe atoms?
John Dalton described atoms as solid spheres.
What did J.J. Thompson propose in 1897?
J.J. Thompson proposed the plum pudding model of the atom.
What did J.J. Thompson's experiments show?
J.J. Thompson's experiments showed that atoms contain smaller, negatively charged particles called electrons.
Explore the History of the Atom: Test Your Knowledge on Key Scientists and Theories
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