general chemistry

Important mcqs Class 11 Chemistry with Answers Chapter wise

Chapter-Wise multiple Choice Question with brief answers for Class 11 Chemistry: Chapter 1: Basic Concepts of Chemistry Important MCQs Chapter 2 :Structure of Atom Important MCQs (Part 1) Chapter 2 :Structure of Atom Important MCQs (Part 2) Chapter 3 Chemical Bonding Important MCQs (Part 1) Chapter 3 : Chemical Bonding MCQS ( Part 2) More …

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Peculiar Behaviour of Beryllium | s-block element – mydigitalkemistry

Peculiar Behaviour of Beryllium: Beryllium is the s-block element of the modern periodic shows some differences from the rest of the members of its family. The electronic configuration of Beryllium is 1s2 2s2 The anomalous properties of beryllium is especially due the following reasons: small size high electronegativity  high ionization energy  high polarizing power (i) Beryllium atom …

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Group II-A Elements Alkaline Earth Metals Occurrence, Physical and Chemical Properties, Reactivity and Compounds – Chemistry

Group II-A Elements Elements of Group I I-A are called alkaline earth metals. This is due to the reason that they are earth-making alkaline metals. Their oxides and hydroxides are alkaline.   Alkaline Earth Metals ( Group II A) are as follow:   Be (Beryllium)  Mg (Magnesium)  Ca (Calcium)  Sr  (Strontium)  Ba (Barium)  Ra (Radium) Alkaline earth …

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Group 1 Elements alkali Metals Occurrence, Physical and Chemical Properties, Reactivity and Compounds – Chemistry

Group 1 Elements alkali Metals Occurrence, Physical and Chemical Properties, Reactivity and Compounds Group I-A Elements Elements of Group I-A are called alkali metals due to the alkaline nature of their oxides and hydroxides. Namely, Lithium (Li) , Sodium (Na) , Potassium (K), Rubidium (Rb) , Cesium (Cs) and Francium (Fr) are group 1A elements …

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Why does Lithium show anomalous behavior in its group

Anomalous Behavior of Lithium in its group: Lithium being 1st member of the group 1 with the symbol Li and atomic number 3 and electronic configuration of 1s2 2s1 shows some differences from the rest of the members of its group. (i)  Melting and boiling point of Lithium are much higher than other members of its …

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Trends in Chemical properties of elements in period 3 – Digital Kemistry

Trends in Chemical properties of elements in period 3 : Period 3 of the table consists of Sodium, Magnesium, Aluminum, Silicon, Phosphorus, Sulphur, Chlorine and Argon. They can be roughly divided into metals (Na, Mg and Al), metalloids (Si) and non-metals (P, S, Cl, and Ar), and therefore the elements within these groups tend to …

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Trends in physical properties of elements in period 3 – Digital Kemistry

Trend in Physical properties of Period 3 elements: Electronic configuration: The 3rd shell starts from sodium and completes at argon. 11Na        →           1s2, 2s2, 2p6, 3s1                             = [Ne], 3s1 12Mg       →            1s2, 2s2, 2p6, 3s2                   = [Ne], 3s2 13Al         →           1s2, 2s2, 2p6, 3s2, 3p1                  = [Ne], 3s2, 3p1 14Si          → …

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What is meant by ionization Energy – Digital Kemistry

Ionization energy: “The energy required to remove the most loosely bound electron from an isolated neutral atom (gaseous atom) or gaseous ion to make cation is called Ionization Potential or Ionization Energy.” Ionization energy is an endothermic process in which energy is absorbed so the sign for this energy is +ve. This energy is required …

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Electron Affinity Chemistry – Which Factors Influence Electron Affinity – Digital Kemistry

Key points: Electron Affinity is the energy released when an electron is added to the outermost shell of an isolated, neutral gaseous atom. The electron affinity increases from left to right in a period. The electron affinity decreases down the group. Factors affecting Electron Affinity: The key factors that influence electron affinity are as follow: …

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