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Atoms and Molecules Video Lecture | Science Class 9

FAQs on Atoms and Molecules Video Lecture - Science Class 9

1. What is an atom?
Ans. An atom is the smallest unit of matter that retains the properties of an element. It consists of a nucleus containing protons and neutrons, surrounded by electrons.
2. How do atoms combine to form molecules?
Ans. Atoms combine to form molecules through chemical bonding. This involves sharing, gaining, or losing electrons to achieve a stable electron configuration.
3. What is the difference between an atom and a molecule?
Ans. An atom is a single particle, while a molecule consists of two or more atoms chemically bonded together. Molecules have different properties than individual atoms.
4. Can atoms of different elements form a molecule?
Ans. Yes, atoms of different elements can combine to form molecules. These molecules are called compounds and have unique chemical properties based on the elements involved.
5. How do scientists study atoms and molecules?
Ans. Scientists study atoms and molecules using techniques such as spectroscopy, microscopy, and crystallography. These methods help determine the structure and behavior of atoms and molecules.
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