John dalton's atomic theory postulate
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Answer:
The following are the postulates of Dalton's atomic theory:
1. Matter consists of indivisible particles called atoms.
2. Atoms of the same element are similar in shape and mass, but differ from the atoms of other elements.
3. Atoms cannot be created or destroyed.
4. Atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form compound atoms.
5. Atoms of same element can combine in more than one ratio to form two or more compounds.
6. The atom is the smallest unit of matter that can take part in a chemical reaction.
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Answer:
John Dalton's atomic theory, proposed in the early 19th century, consisted of several postulates:
1. Elements are made up of tiny, indivisible particles called atoms.
2. Atoms of the same element are identical in size, mass, and chemical properties.
3. Atoms of different elements have different sizes, masses, and chemical properties.
4. Compounds are formed when atoms of different elements combine in fixed ratios.
5. In a chemical reaction, atoms are rearranged, but no atoms are created or destroyed.
6. Chemical reactions involve the combination, separation, or rearrangement of atoms.
These postulates laid the foundation for our understanding of atoms and molecules, and Dalton's atomic theory was a significant milestone in the development of modern chemistry.