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PPT On Chemistry-Bonds

Published in: Chemistry
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Different types of chemical bonds definition and example.

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  2. Chemical Bonds • Ionic bonds • Covalent Bonds • Metallic Bonds • Hydrogen Bonds Ionic Bond Covalent Bond Chemical Bonding Transfer of electron Sharing of Electrons
  3. Ionic Bonds • Between metal and non-metal • Non metal lose electron ( called Cation) • metal gain electron ( Called Anion) • Strongest bond 18-20
  4. Covalent Bonds • Between non metal and non metal • Share electron • Strong bond but not stronger than Ionic 'O Shared Electrons • Most common bond ' Two type: Polar & non polar ' Polar: electronegativity difference- — higher the difference more polarity • Non polar: same electronegativity, or the difference is so small
  5. Periodic table ae•t:: у 3.0 22 2.5 22 1.0 0.9 не, 0-8 1.6 1.3 1.4 1.0 1.2 0*+9 1.1 (13} 1.6 те 2.1 2.2 2.3 Алт 2-2 1.9 1-9 1.7 1-7 Z5 1.9 2.0 2.0 3.5 4.0 370 1.5 1.6 1.7 гле 1.3 1.6 2.2 2 л 2.6 2.8 те ал 27 2.6 О '.м• Ив..ль
  6. Metallic Bond • force of attraction between valence electrons and the metal ions • sharing of many detached electrons between many positive ions, where the electrons act as a "glue" giving the substance a definite structure • Strong bond free electrons frotn outer shells of tnetal atorns metal ions
  7. Hydrogen bonds • attractive force between the hydrogen attached to an electronegative atom of one molecule and an electronegative atom of a different molecule • Strong bond but weaker than ionic and covalent bond o Hydrogen bond Covalent band