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Atoms and Molecules - Chemistry, General Science, Exam Preparation Video Lecture | General Awareness & Knowledge - Bank Exams
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FAQs on Atoms and Molecules - Chemistry, General Science, Exam Preparation Video Lecture - General Awareness & Knowledge - Bank Exams
| 1. What is an atom and how does it differ from a molecule? |  |
Ans. An atom is the basic unit of matter that cannot be further divided without losing its chemical properties. It consists of a nucleus containing protons and neutrons, with electrons orbiting around it. On the other hand, a molecule is formed when two or more atoms chemically combine together, held by chemical bonds. The atoms in a molecule can be of the same element or different elements.
| 2. How are atoms and molecules related to chemistry? | |
Ans. Atoms and molecules are the building blocks of chemistry. Chemistry studies the properties, composition, and behavior of matter, which is made up of atoms and molecules. Understanding the structure and interactions of atoms and molecules is crucial in studying chemical reactions, bonding, and the formation of different substances.
| 3. Can atoms exist independently, outside of molecules? | |
Ans. Yes, atoms can exist independently. Noble gases, such as helium and neon, are examples of elements that exist as individual atoms. These atoms have a stable electron configuration and do not readily form chemical bonds with other atoms. However, most elements tend to form molecules by sharing, gaining, or losing electrons to achieve a stable electron configuration.
| 4. How are atoms and molecules represented in chemical equations? | |
Ans. In chemical equations, atoms and molecules are represented using chemical symbols and formulas. Each element is represented by a unique symbol, such as H for hydrogen and O for oxygen. The number of atoms in a molecule is indicated by subscripts written after the chemical symbol. For example, H2O represents a molecule of water consisting of two hydrogen atoms and one oxygen atom.
| 5. Why is it important to understand atoms and molecules in general science? | |
Ans. Understanding atoms and molecules is crucial in general science as it helps explain various phenomena and processes. It provides insights into the behavior of substances, the formation of compounds, and the fundamental principles of matter. Knowledge of atoms and molecules is essential in fields such as physics, biology, and environmental science, as it forms the basis for understanding chemical reactions, energy transfer, and the functioning of living organisms.
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