Class 11

Understanding the Quantum of Charge

What is the quantum of charge? The quantum of charge helps in detecting the electronic control of an electron. It helps detect the smallest charge and how it helps in various applications and electric purposes. Quantum is an important concept in physics and chemistry, with quantum numbers describing the trajectory and the movement of the […]

Understanding the Quantum of Charge Read More »

Atomic and molecular masses, Chemistry, Class 11, IIT JEE, Some Basic Concepts in Chemistry

Uncertainty Principle

Introduction The uncertainty principle, also known as the Heisenberg uncertainty principle or the indeterminacy principle, is a statement made by German physicist Werner Heisenberg in 1927. It states that an object’s position and velocity cannot be measured precisely at the same time, even in theory. In fact, in nature, the concepts of absolute position and

Uncertainty Principle Read More »

Atomic and molecular masses, Chemistry, Class 11, IIT JEE, Some Basic Concepts in Chemistry

Uncertainty Principle

Introduction The uncertainty principle is without a doubt one of the most well-known parts of quantum mechanics, if not the most famous. It has frequently been cited as the greatest distinguishing aspect of quantum mechanics as compared to classical models of the physical world, and for good reason. The uncertainty principle (for position and momentum)

Uncertainty Principle Read More »

Atomic and molecular masses, Chemistry, Class 11, IIT JEE, Some Basic Concepts in Chemistry

Types of Inductive Effects

JEE Main 2024 Result Session 2 When the bond pair moves towards the more electronegative atom, it polarises a sigma bond. Polarisation occurs between two atoms with varying electronegativity. The electronegative atom receives only a partial negative charge, while the other atom receives a partial positive charge. Click here to know about Unacademy Aarambh 2024

Types of Inductive Effects Read More »

Atomic and molecular masses, Chemistry, Class 11, IIT JEE, Some Basic Concepts in Chemistry

The Pauli Exclusion Principle

Introduction Pauli’s Exclusion principle fundamentally enables us to comprehend the electron configurations in atoms and molecules, and it also explains the categorization of elements in the periodic table. The Pauli Exclusion Principle asserts that in a single atom, no two electrons will have an exact copy of the same quantum numbers (n, l, ml, and

The Pauli Exclusion Principle Read More »

Atomic and molecular masses, Chemistry, Class 11, IIT JEE, Some Basic Concepts in Chemistry

Subatomic Particles

Between 1803 and 1808, John Dalton proposed an atomic theory. According to this theory, an atom is the smallest indivisible particle, and it cannot be divided further. It almost explained everything related to atoms except their chemical activity. It could not conclude anything about atomic masses as well. Finally, scientists J.J. Thomson and Ernest Rutherford

Subatomic Particles Read More »

Atomic and molecular masses, Chemistry, Class 11, IIT JEE, Some Basic Concepts in Chemistry

Solid State

Solid is a state of matter in which the constituting particles are arranged very closely. The constituent particles can be anything atoms, molecules or ions. Solid is one of the Four fundamental states of matter . The molecules in a solid are closely packed and contain the least amount of kinetic energy. We will study

Solid State Read More »

Atomic and molecular masses, Chemistry, Class 11, IIT JEE, Some Basic Concepts in Chemistry

Shape of Molecules

We can determine the location of electrons and nuclei of an atom with molecular geometry and with the help of location of electrons and nuclei we can determine the shape of molecules. for example – H2O (water) We know about the location of electrons and nuclei in molecules of water then we can easily determine

Shape of Molecules Read More »

Atomic and molecular masses, Chemistry, Class 11, IIT JEE, Some Basic Concepts in Chemistry

S.I. Units, Dimensional Analysis

It is not necessary to use a capital letter when writing the full names of the units, even if they are named after famous scientists. For example, newton, watt, ampere, and metre are all units of measurement. The unit should be written either in full or only using the symbols that have been agreed upon.

S.I. Units, Dimensional Analysis Read More »

Atomic and molecular masses, Chemistry, Class 11, IIT JEE, Some Basic Concepts in Chemistry

Repulsion (VSEPR ) Theory and Shapes of Simple Molecules

Molecule’s shapes can be predicted by looking at the electron pairs that surround the atoms in the center. In 1940, Sidgwick and Powell proposed the theory. On the basis of the VSEPR theory, the molecule is assumed to have a form that minimizes valence shell electronic repulsion. An electron pair repulsion exists in every atom,

Repulsion (VSEPR ) Theory and Shapes of Simple Molecules Read More »

Atomic and molecular masses, Chemistry, Class 11, IIT JEE, Some Basic Concepts in Chemistry