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Atomic Structure in One Shot (NCERT) Video Lecture | Chemistry for JEE Main & Advanced
FAQs on Atomic Structure in One Shot (NCERT) Video Lecture - Chemistry for JEE Main & Advanced
| 1. What is atomic structure? |  |
Ans. Atomic structure refers to the arrangement and organization of subatomic particles within an atom. It includes the nucleus, which contains protons and neutrons, and the electron cloud, where electrons are found orbiting the nucleus.
| 2. How do protons, neutrons, and electrons contribute to the atomic structure? | |
Ans. Protons, neutrons, and electrons are the three main subatomic particles that make up an atom. Protons have a positive charge and are located in the nucleus, while neutrons have no charge and are also found in the nucleus. Electrons, on the other hand, have a negative charge and orbit the nucleus in energy levels or shells.
| 3. What is the significance of the atomic structure in understanding chemical behavior? | |
Ans. The atomic structure plays a crucial role in understanding chemical behavior because it determines the properties and reactivity of elements. The number of protons in the nucleus defines the element's identity, while the arrangement of electrons determines its chemical properties, such as its ability to form bonds and participate in chemical reactions.
| 4. How was the atomic structure discovered? | |
Ans. The discovery of the atomic structure involved various scientific contributions. J.J. Thomson discovered the electron through his experiments on cathode rays, while Ernest Rutherford proposed the model of the atom with a dense, positively charged nucleus using his gold foil experiment. Later, James Chadwick discovered the neutron, completing the understanding of the atomic structure.
| 5. What are energy levels or electron shells in the atomic structure? | |
Ans. Energy levels, also known as electron shells or orbitals, are regions around the nucleus where electrons are likely to be found. These energy levels are arranged in increasing energy and capacity, with the first level closest to the nucleus and having the lowest energy. Electrons occupy these energy levels in a specific order, following the rules of electron configuration.
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