Grade 9 Chemistry
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Grade 9 Chemistry
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Grade 9 Chemistry 1. Define Atom. - Answer: An atom is the fundamental and smallest unit of a chemical element, composed of three subatomic particles: protons, neutrons, and electrons. 2. Explain Atomic Radius. - Answer: Atomic radius refers to the average distance from the center of an atom's nucleus to its electrons in the outermost orbital. 3. What is Boiling Point? - Answer: Boiling point is the temperature at which a liquid changes to vapor, such as water boiling at 100°C und...
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