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FAQs on Question Bank: Structure of Atom - Chemistry Class 11 - NEET

1. What is the structure of an atom?
Ans. The structure of an atom consists of a small, positively charged nucleus at the center, surrounded by negatively charged electrons that orbit around the nucleus in specific energy levels or shells.
2. What are the subatomic particles present in an atom?
Ans. An atom consists of three main subatomic particles: protons, neutrons, and electrons. Protons carry positive charge and are located in the nucleus, while neutrons are neutral particles also found in the nucleus. Electrons are negatively charged particles that orbit around the nucleus.
3. How are protons, neutrons, and electrons distributed in an atom?
Ans. Protons and neutrons are located in the nucleus of an atom, which is at the center. Electrons are distributed in energy levels or shells around the nucleus. The innermost shell can hold up to 2 electrons, while the subsequent shells can hold more electrons based on a specific pattern.
4. What is the significance of the atomic number of an element?
Ans. The atomic number of an element represents the number of protons in the nucleus of an atom of that element. It is a unique characteristic of each element and determines its position in the periodic table. The atomic number also determines the element's chemical properties.
5. How do electrons occupy different energy levels in an atom?
Ans. Electrons occupy different energy levels in an atom based on the Aufbau principle, which states that electrons fill the lower energy levels first before moving to higher energy levels. Each energy level can hold a specific number of electrons, and the filling order follows a pattern according to the periodic table.
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