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Atoms-and-Ions

12 posts

Ionization Energy

Last Updated: 02 June 2026

Ionization energy is an important periodic property that explains how easily an atom can lose an electron. It is defined as the minimum amount of energy required to remove...read more

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School Learning

Chemistry-Concepts

Shapes of Atomic Orbitals

Last Updated: 27 March 2026

Atomic orbitals are regions in an atom where the probability of finding an electron is the highest. According to the quantum mechanical model of the atom, electrons do not...read more

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School Learning

Chemistry-Class-11

Inorganic-Chemistry

Last Updated: 23 July 2025

Atomic number of an element refers to the number of protons present in its nucleus. It's also called the nuclear charge number and is symbolized by Z. In a nonionized atom...read more

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School Learning

Chemistry-Class-10

Polyatomic Ions

Last Updated: 04 August 2022

An ion is a chemical entity that has a positive or negative charge of a certain magnitude. The term 'ion' can refer to atoms or molecules that have non-zero net charges at...read more

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School Learning

Chemistry-Class-9

Quantum Numbers

Last Updated: 23 March 2026

Quantum numbers are a set of numbers used to describe the position, energy, and orientation of an electron in an atom. They help scientists understand how electrons are ar...read more

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School Learning

Chemistry-Class-11

Inorganic-Chemistry

Isotopes of Hydrogen

Last Updated: 23 July 2025

Isotopes of an atom are variants of the same atom but with different mass numbers. That is if two atoms have the same atomic number but different mass numbers then they ar...read more

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School Learning

Chemistry-Class-11

Last Updated: 20 April 2026

Atoms are the basic units of matter, but most atoms do not exist independently in nature. They combine with other atoms to form molecules and compounds. The force that hol...read more

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School Learning

Chemistry-Class-11

Cations vs Anions

Last Updated: 23 July 2025

Ions are charged species that are formed by the transfer of electrons from the outermost shell. Ions are either positive or negative in nature depending on the overall cha...read more

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School Learning

Chemistry-Class-9

Inorganic-Chemistry

Last Updated: 23 April 2026

Valency of an element is a measure of an atom's ability to combine with other atoms to create molecules or chemical compounds. The characteristics of an element that indic...read more

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School Learning

Chemistry-Class-9

Inorganic-Chemistry

Rutherford Atomic Model

Last Updated: 23 April 2026

The Rutherford atomic model was proposed by Ernest Rutherford in 1911. It is also called the Planetary Model of the Atom. It introduced the concept of a dense, positively ...read more

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School Learning

Chemistry-Class-9

Inorganic-Chemistry

Last Updated: 23 July 2025

Neutrons are fundamental subatomic particles of the atom. An atom is made up of electrons, protons and neutrons. James Chadwick, an English physicist, discovered the neutr...read more

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School Learning

Chemistry-Class-9

Last Updated: 23 April 2026

Isotopes are atoms of the same element that have the same atomic number but different mass numbers. This difference occurs because the atoms contain the same number of pro...read more

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School Learning

Chemistry-Class-9

Inorganic-Chemistry