Covalency of Oxygen
An oxygen atom has 6 valence electrons, so it can share its 2 electrons with two electrons of another atom to achieve the 8-electron inert gas electron arrangement and become stable. Since one oxygen atom shares 2 electrons to achieve the nearest inert gas electron arrangement, therefore, the covalency (or just valency) of oxygen is 2.For example, in the formation of an oxygen molecule, ,each oxygen atom shares its 2 electrons with the other atom, so the valency of oxygen in the molecule is 2.
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Structure of the Atom - Notes
1. Drawback of Rutherford’s Model of the Atom
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2. Rutherford’s Experiment - Discovery of Nucleus
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3. For the symbols H, D and T,tabulate three sub-atomic particles found in each of them.
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5. Structure of The Atom - Study Points
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10. Arrangement Of Electrons In The Atoms
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13. Limitations of Rutherford's model of the atom
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15. All about Names of the Chemical Elements
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17. How to learn naming Chemical Formulae?
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20. Comparison between Proton, Neutron and Electron
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21. Electronic Configurations of First 20 Elements
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27. Rules for writing of distribution of electrons in various shells for the first 18 elements
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35. The Physical Properties of the Isotopes of an Element are Different
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39. All the Isotopes of an Element Have Identical Chemical Properties
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42. Relationship Between Mass Number and Atomic Number
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44. Valaence Electrons (Or Valancy Electrons)
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47. Electronic Configurations of Noble Gases (or Inert Gases)
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48. Reason for the Fractional Atomic Masses of Elements
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50. Applications of Radioactive Isotopes
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