Atoms and Nuclei

Energy levels and hydrogen spectrum

As you may be aware that electrons in an atom or a molecule consume energy, get excited, jump to a higher energy level from a lower energy level, and then emit radiation when they return to their initial states. This phenomenon accounts for the emission spectrum through hydrogen as well, known as the hydrogen emission […]

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Atoms and Nuclei, Bohr’s model of the hydrogen atom, Class 12, NEET, Physics

Electron Mass

Electrons are subatomic particles that make up the most fundamental part of atoms, along with protons and neutrons. For a long time, the atom was thought to be an element’s final structure. Because it derives from a Greek word that means “indivisible,” the term “atom” is a perfect representation of that idea. All of that

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Atoms and Nuclei, Bohr’s model of the hydrogen atom, Class 12, NEET, Physics

Drawbacks Of Rutherford Model Of Atom

Rutherford tested to decide the dissemination of electrons and positive charges, yet there are a few disadvantages that we concentrate on exhaustively. To comprehend this, we will discuss how Rutherford proposed the model in which adversely charged electrons encompass the atoms core. Furthermore, this model adversely charges electrons, and the nucleus is thickly focused. Physicists

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Atoms and Nuclei, Bohr’s model of the hydrogen atom, Class 12, NEET, Physics

Deuteron Mass

Hydrogen is the first element in the periodic table, with an atomic number of 1. It is the lightest element known. Henry Cavendish discovered it in 1766. By dissolving iron in dilute HSO, he created the gas. Because it creates water when burned with oxygen, Lavoisier coined the term hydrogen (‘hydro’ means water and ‘gene’

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Atoms and Nuclei, Bohr’s model of the hydrogen atom, Class 12, NEET, Physics

Composition and Size of Nucleus, Atomic Masses, Isotopes and Isobars

An atom is the smallest possible entity of matter, which cannot be further divided into smaller particles. Atoms have all the characteristic chemical behaviour unique to a particular chemical element. If we look into the composition of an atom, it is found that atoms consist of three subatomic particles known as protons and neutrons, surrounded

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Atoms and Nuclei, Bohr’s model of the hydrogen atom, Class 12, NEET, Physics

Composition and size of nucleus

The nucleus of an atom is the focal area of a particle where most of the mass is concentrated. Through the dissipation of Rutherford’s alpha-particle experiment, we discovered that the core of a molecule contains the greater part of the mass of the atom. Mathematically talking, the core of an atom possesses nearly 10-14 times

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Atoms and Nuclei, Bohr’s model of the hydrogen atom, Class 12, NEET, Physics

Bohr’s Model Postulates of an Atom

Negative charged atom’s electrons orbit the +ve charged nucleus in a fixed circular path known as orbits. A circular path is called an orbit or shell, and circular orbits are known as orbital shells. In this model, the electron moves from a higher to a lower energy state. Such circular orbits are called orbital shells

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Atoms and Nuclei, Bohr’s model of the hydrogen atom, Class 12, NEET, Physics

Bohr’s model

Introduction Niels Henrik David Bohr, a great name in physics, was the first one who explained quantitatively the general features of the structure of hydrogen atoms and their spectrum. In 1912, Bohr joined Ernest Rutherford’s group, which was at Manchester, England, where he began to work on the atomic theory. When Bohr was working in

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Atoms and Nuclei, Bohr’s model of the hydrogen atom, Class 12, NEET, Physics

Bohr Model: Meaning Definition

Danish physicist Niels Bohr proposed atom’s structures, especially those similar to hydrogen. The Bohr model describes the properties of the atomic electrons in terms of set values. Radiation is emitted by atoms when the electrons jump from one stationary orbit to another. There is a positively charged heavy core within an atom known as the

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Atoms and Nuclei, Bohr’s model of the hydrogen atom, Class 12, NEET, Physics

Bohr Model Illustrations

The Bohr model is based on the quantum theory of radiation and the classical law of physics. Niels Bohr, 1913 proposed a theory combining the nuclear model of the atom with the quantum theory of light. On the basis of his thesis on the quantum theory of light on the intermittent, discrete nature of radiation

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Atoms and Nuclei, Bohr’s model of the hydrogen atom, Class 12, NEET, Physics