What is John Dalton best known for?
Atomic theory
Quantum mechanics
Relativity theory
Periodic table
Answer
Atomic theory, proposed by John Dalton, revolutionized chemistry. It postulates that all matter is composed of tiny, indivisible particles called atoms. Each element has its own unique type of atom, differing in mass and properties. Atoms combine in specific ratios to form compounds, and chemical reactions involve the rearrangement of atoms. Dalton's theory laid the foundation for modern chemistry and helped explain the behavior of matter at the atomic level.
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