Concept explainers
Interpretation:Main ideas of Dalton’s atomic theory needs to be explained.
Concept introduction: Dalton’s atomic theory was proposed by John Dalton. Dalton’s model explained important observations. For example: the law of constant composition.
Answer to Problem 2RQ
According to the Dalton’s atomic theory, matter is composed of tiny particles, all atoms of certain element are identical, compound contains more than one element.
Explanation of Solution
John Dalton, British teacher and scientist, explained concepts behind most natural materials are mixtures of pure substance, pure substances are either elements or combinations of elements called compound. Summarized explanationof these concepts is termed as Dalton’s atomic theory. Main ideas of Dalton’s atomic theory are mentioned below:
- This theory
states that all matter is made of indestructible and indivisible atoms. - All atoms of element have identified mass and properties.
- Each element has different atoms.
- Atoms can engage in a
chemical reaction . - Compound contain a definite and small number of atoms.
As per Dalton’s atomic theory, atoms of same element are identical.
Chapter 3 Solutions
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