NCERT Solutions for Class 12

NCERT Solutions for Class 12 Physics Chapter 12 Free PDF Download

NCERT Solutions for Class 12 Physics Chapter 12 Atoms

Scoring good marks in Physics is a tough task. In addition, its formulas are harder than the theory because students do not know where to put which value. That’s why we have prepared these NCERT Solutions for Class 12 Physics Chapter 12 that will direct student attention to a simplified and easy explanation. Also, our proficient teacher is always available to resolve any issue that the students face.

Besides, the solutions are easy to understand as our professional teacher has designed them to bear a proper and complete meaning and explanation of each topic and formulas of the chapter.

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Download NCERT Solutions for Class 12 Physics here

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CBSE Class 12 Physics Chapter 12 Atoms NCERT Solutions

Atoms refer to the smallest part of an element that has sharing chemical properties with the elements and nucleus with proton, neutron, and electron. This NCERT solution for Class 12 Physics Chapter 12, defines all the topic of the chapter in a simple understandable language. Besides, it will also help students to grasp the changed concepts of the chapter. Moreover, the solutions are based on the latest course of study of the chapter.

Subtopics covered under NCERT Solutions for Class 12 Physics Chapter 12

12.1 Introduction

This topic firstly defines the J.J. Thomson model of atoms and its drawbacks. Also, the topic gives details about what it was and how it worked. After that, the topic defines what is the modern concept of atoms.

12.2 Alpha-Particle Scattering and Rutherford’s Nuclear Model of Atom

This topic defines how Ruthford experimented with alpha-particles to know the trajectory of atoms.

12.2.1 Alpha-particle trajectory- It refers to those particles which are bombarded on the atoms. Moreover, these particles change direction after coming in contact with the atom.

12.2.2 Electron orbits- It describes the orbit in which the electron moves in a molecule.

12.3 Atomic Spectra

This refers to a line that represents the atomic emission of an atom if measured on a scale.

12.3.1 Spectral Series- This refers to a defined series of different elements that are used for measuring emission.

12.4 Bohr Model of the Hydrogen Atom

In this model, Bohr defined the movement of an electron near an atom. Moreover, he used the Hydrogen atom for performing this experiment. Besides, this topic also defines the properties, assumptions, experiments, and formulas related to it.

12.4.1 Energy Levels- This outlines the energy of atoms is recognized by how close the electron is to atom while revolving. Also, the electron continuously loses energy and ultimately got destroyed.

12.5 The Line Spectra of the Hydrogen Atom

This topic overviews Bohr’s third postulate. Besides, the topic also describes the formula and structure of the hydrogen atom at the time of the experiment.

12.6 De Broglie’s Explanation of Bohr’s Second Postulate of Quantisation

In this topic, De Broglie’s explained the second postulate of Quantisation of Bohr. Also, the topic defines its formula properties and various topic related details.

Summary- This topic summarizes all the topics in short form so that students can get a short description of each topic.

You can download NCERT Solutions for Class 12 Physics Chapter 12 PDF by clicking on the button below.

NCERT Solutions for Class 12 Physics Chapter 12 Free PDF Download

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