Class 11 Exam > Class 11 Videos > CBSE Class 11: Structure Of Atom L - 1 | Chemistry | Unacademy Class 11 & 12 |
CBSE Class 11: Structure Of Atom L - 1 | Chemistry | Unacademy Class 11 & 12 | Video Lecture
FAQs on CBSE Class 11: Structure Of Atom L - 1 - Chemistry - Unacademy Class 11 & 12 - Video Lecture
| 1. What is the structure of an atom? |  |
Ans. The structure of an atom consists of a nucleus at the center, which contains protons and neutrons. Surrounding the nucleus are electrons that occupy different energy levels or shells.
| 2. How are protons and neutrons different from electrons? | |
Ans. Protons and neutrons are located in the nucleus of an atom, while electrons are found in the energy levels surrounding the nucleus. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge.
| 3. What are energy levels or shells in an atom? | |
Ans. Energy levels or shells in an atom are regions where electrons can exist. These energy levels are represented by numbers (n=1, n=2, n=3, etc.), with the first energy level being closest to the nucleus. Each energy level can hold a specific number of electrons.
| 4. How do electrons occupy the energy levels in an atom? | |
Ans. Electrons occupy energy levels starting from the innermost level and moving outward. The first energy level can hold a maximum of 2 electrons, the second energy level can hold a maximum of 8 electrons, and so on. Electrons fill up the available energy levels in a specific order known as the Aufbau principle.
| 5. How does the structure of an atom determine its chemical properties? | |
Ans. The structure of an atom, specifically the arrangement of electrons in the energy levels, determines its chemical properties. The number and arrangement of electrons in an atom's outermost energy level, also known as the valence electrons, determine how the atom will interact with other atoms and form chemical bonds. These interactions and bonding patterns ultimately determine the chemical properties of an atom.
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Nov 08, 2024 Last updated |
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