Atomic Structure

Complex Formation Tendency of D Block Elements

The elements of groups 3-12 are placed in the periodic table, in the  D-Block segment, where the D-Orbitals eventually fill throughout each of the four long periods. In the central section of the periodic table, the D-Block is flanked by the s- and p-blocks. The elements of the D-Block are given the term ‘transition’ because […]

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Atomic Structure, Chemistry, Class 11, Electronic configuration, IIT JEE

Classification of F- Block Elements

f- block elements consist of the 4f and 5f elements whose orbitals are constantly filled. The group 3 elements are the members of f block elements.  They consist of two series: lanthanides and actinides. Lanthanides resemble each other more than any other transition elements in the series because they contain only one oxidation state. The

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Atomic Structure, Chemistry, Class 11, Electronic configuration, IIT JEE

Chemical Properties of Group 14 Elements

Group 14 of the periodic table, also known as carbon group elements, comprises six elements. These elements are carbon (C ), silicon (Si), germanium (Ge), tin (Sn), lead (Pb) and flerovium (Fl). Other than germanium and flerovium (which is artificially produced), all these elements can be found in our daily lives.  These elements can be

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Atomic Structure, Chemistry, Class 11, Electronic configuration, IIT JEE

Calculation of Lattice Enthalpy

The ionic compounds are usually present in the solid form, and their molecular force seems very strong. The molecules present in the ionic solids have been arranged in the 3-D grid-like structure known as the lattice structure. The energy required to separate one mole of the solid ionic compound into the constituent gaseous ions is

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Atomic Structure, Chemistry, Class 11, Electronic configuration, IIT JEE

Calculation of Lattice Enthalpy

INTRODUCTION The ionic compounds are usually present in the solid form, and their molecular force seems very strong. The molecules present in the ionic solids have been arranged in the 3-D grid-like structure known as the lattice structure. The energy required to separate one mole of the solid ionic compound into the constituent gaseous ions

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Atomic Structure, Chemistry, Class 11, Electronic configuration, IIT JEE

Block Elements (Alkali and Alkaline Earth Metals)

The s- block elements of the periodic table are the ones in which the last electron enters the outermost s orbital. As this particular orbital can accommodate only two electrons, two groups (1 and 2) belong to the s- block itself. Group 1 consists of elements like sodium, potassium, lithium, rubidium, francium, and caesium. These

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Atomic Structure, Chemistry, Class 11, Electronic configuration, IIT JEE

Aufbau Principle and its Role in Atomic Structure Building

The term”Aufbau” comes from the German word “aufbauen”, which means to make up or build. The Aufbau principle describes a model-structure approach in which electrons are traditionally added to an atom. When electrons are introduced, they take the shells that are the most stable in relation to the nucleus and the electrons formerly present. We

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Atomic Structure, Chemistry, Class 11, Electronic configuration, IIT JEE

Why Atoms React and How?

The atom, which is the smallest particle known today, was discovered by John Dalton in 1804 to explain matter. According to Dalton, an atom is the tiniest particle of a detail. It was adopted as the unit of chemical atom reactions and could not be subdivided further. Amedeo Avogadro agreed with Dalton, but he wondered

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Atomic Structure, Chemistry, Class 11, IIT JEE, Quantum numbers

Various Quantum Numbers (Principal, Angular Momentum, and Magnetic Quantum Numbers)

Introduction An atom is composed of a large number of orbitals that are identifiable from each other from their shape, size, and spatial perception.  Orbital parameters are applied to define an electron’s state properly and are expressed in terms of three numbers: principal quantum number, azimuthal quantum number, magnetic quantum number, and a spin quantum

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Atomic Structure, Chemistry, Class 11, IIT JEE, Quantum numbers

Size of Nucleus

The smallest unit of matter is an atom, which has the properties of a chemical element and is the fundamental building block of chemistry. Atoms are the smallest units of all matter. An atom’s interior consists primarily of empty space, with its centre containing positively charged particles known as protons and neutral particles known as

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Atomic Structure, Chemistry, Class 11, IIT JEE, Quantum numbers