periodic table

Group IV-A Elements Properties : Melting and Boiling Point | Metallic Character | Oxidation state | Inert pair Effect – Chemistry

Group IV-A Elements This group of elements is placed in middle of periodic table. Group 4A (or IVA or group 14) elements of the modern periodic table includes the nonmetal carbon (C), the metalloids silicon (Si) and germanium (Ge), the metals tin (Sn) and lead (Pb), and ununquadium (Uuq).  Melting and Boiling Point: Carbon , Silicon and …

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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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Electron Affinity Trends Chemistry – Digital Kemistry

Key Points: 1.What is electron affinity 2.Electron Affinity Examples 3. Electron Affinity Units 4.Is Electron Affinity endothermic or exothermic reaction 5. Electron Affinity Trends Electron Affinity is defined as the minimum amount of energy released to gain the electron by isolated, neutral gaseous atom .This will result in the formation of negatively charged gaseous ion …

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Ionization Energy Trends | Periodic Table – Chemistry

Key Points: 1.What is Ionization Energy 2.Ionization Energy Examples 3.Ionization Energy Units 4.Is ionization Energy endothermic or exothermic reaction 5.Ionization Energy Trends Ionization Energy is defined as the minimum amount of energy required to remove the outermost electron from isolated, neutral gaseous atom . This will result in the formation of positively charged gaseous ion …

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Electronegativity definition- Factors Influence Electronegativity – Chemistry

Key points: Electronegativity is the ability of an atom to attract the shared electron pair towards itself in a covalent bond. The electronegativity increases from left to right in a period. The electronegativity decreases down the group. Factors affecting Electronegativity: The key factors that influence electronegativity are as follow: 1. Atomic size 2. Nuclear charge …

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Electronegativity Definition, Periodic Trends ,Examples and Facts – Chemistry

What is Electronegativity? Electronegativity is defined as the tendency of an atom in a molecule to attract the shared electron pair towards itself is known as electronegativity. Electronegativity Trends in Periodic Table: Electronegativity trends that can be observed in the periodic table as we move from left to right in a periodic table, the electronegativity …

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Electronic Configuration for Lithium (Li) – Atomic Number #3 – Digital Kemistry

How to Write Electronic Configuration for Lithium(Li) Lithium (Li) has atomic number 3 and mass number 6.941 . Since the lithium has three electrons around the nucleus of an atom .Therefore, lithium electronic configuration is very simple and easy to write. Electronic configuration of Lithium (Li) = 1s2 2s1 As we know that the first …

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Electronic Configuration for Helium (He) – Digital Kemistry

How to Write Electron Configuration for Helium (He) Helium (He) has atomic number 2 and mass number 4 . Since the helium has two electrons around the nucleus of an atom .Therefore, helium electronic configuration is very simple and easy to write. Electronic configuration of Helium (He) = 1s2 As we know that the K-shell …

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Trick to memorize Group 1 Elements of the Periodic table in English – Digital Kemistry

Group 1 Elements: You Know !! Group 1 elements are known as Alkali metals . These alkali metals belongs to s-block . All the group 1 elements having one valence electron. Group 1 elements are Hydrogen , Lithium, Sodium, Potassium , Rubidium, Cesium and Francium. Alkali metals are s-block elements of the modern periodic table …

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