Class 12

Borates

Boron is the fifth element on the periodic table. The minerals that naturally occur in nature containing this element are called borates. Boron cannot exist by itself in nature. It has to combine with other elements, either forming boric acid or inorganic salts, which are called borates.  BO33−is the simplest ion of borate. These ions […]

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Chemistry, Class 12, Classification of Elements and Periodicity, IIT JEE, Periodicity of atomic and ionic radii

Atoms and X-Rays

We observe light around us in various colours. Did you know that the light we see is a form of energy? Also, what we see around us is not just limited to light. There are various other radiations we cannot notice. They all lie in the electromagnetic spectrum and are known as Electromagnetic Radiation. Electromagnetic

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Chemistry, Class 12, Classification of Elements and Periodicity, IIT JEE, Periodicity of atomic and ionic radii

Anomalous Behaviour of Lithium

The anomalous behaviour of lithium is due to its cation’s small size. Because of its small size and solid nuclear charge, lithium is the most polar alkali metal on negative ions. Thus, lithium-ion has a solid tendency to solvate and form covalent compounds. Li is distinct from other alkali metals because: Dry air melting maintains

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Chemistry, Class 12, Classification of Elements and Periodicity, IIT JEE, Periodicity of atomic and ionic radii

Allotrophic Forms of Phosphorus

There are many different types of allotropes of elements, which are also known as allotropes of elements. Allotropy or allotropism is the property of some chemical elements to exist in two or more different forms, while remaining in the same physical state, which are known as allotropes of elements. As a result, the physical and

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Chemistry, Class 12, Classification of Elements and Periodicity, IIT JEE, Periodicity of atomic and ionic radii

Allotropes of Sulphur

The property of chemical elements to exist in numerous different forms in the same physical state is known as allotropism or allotropy. These forms are also called allotropes of elements. Sulphur is a non-metal having atomic mass 40 and atomic number 16, belonging to the chalcogen family of group 16 and period 3 of the

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Chemistry, Class 12, Classification of Elements and Periodicity, IIT JEE, Periodicity of atomic and ionic radii

Alkaline Earth Metals

The group 1 elements of the periodic table, except hydrogen, are alkali metals, and the group two elements, except beryllium, are alkaline earth metals. The s-block elements have a typical electronic configuration of ns1 for alkali metals and ns2 for alkaline earth metals.  Because of charge and the addition of an electron to the same

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Chemistry, Class 12, Classification of Elements and Periodicity, IIT JEE, Periodicity of atomic and ionic radii

Alkali Metals and Halogens

metals, found on the periodic table’s left side in the s-block, are among the most reactive elements on the planet because they quickly shed electrons. Halogens belong to the class of non-metals in group 17. Fluorine, chlorine, bromine, iodine and astatine are halogen elements. These components are too volatile to occur naturally. The electronic configurations

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Chemistry, Class 12, Classification of Elements and Periodicity, IIT JEE, Periodicity of atomic and ionic radii

Alkali Metals

Alkali metals lie in the left row of the periodic table. It contains a total of 6 metals: (Li) lithium, (Na) sodium, (K) potassium, (Rb) rubidium, (Cs) cesium, and (Fr) francium. Alkali metals are also well known as group1 metals as they are of the first group. The group 1 metals are named so because

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Chemistry, Class 12, Classification of Elements and Periodicity, IIT JEE, Periodicity of atomic and ionic radii

Actinoids: Electronic Configuration and the Oxidation States

Actinoids are elements with atomic numbers ranging from 90 to 103, which come after the element Actinium. They include naturally occurring thorium, protactinium, and uranium elements, as well as eleven transuranic elements created artificially through nuclear processes. Despite this, all Actinoids are radioactive.The term “actinide series” comes from the first element in the series, actinium.

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Chemistry, Class 12, Classification of Elements and Periodicity, IIT JEE, Periodicity of atomic and ionic radii

Actinide Contraction

Actinides are the group of elements that are the rarest and most radioactive elements in the periodic table. The atomic number lies from 90 to 103, followed by the Actinium. You will find that the elements are prepared artificially. Actinide contraction is the decrease or increase in its atomic number. You can take this article

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Chemistry, Class 12, Classification of Elements and Periodicity, IIT JEE, Periodicity of atomic and ionic radii