Chapter 11 Chemical Bonds: The Formation of Compounds from ...
Chapter 11 Chemical Bonds: The Formation of Compounds from ...
Chapter 11 Chemical Bonds: The Formation of Compounds from ...
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<strong>11</strong>.5 <strong>The</strong> covalent bond: sharing<br />
electrons<br />
electron transfer between atoms does not occur in<br />
molecular compounds in which a chemical bond<br />
formed by sharing pairs <strong>of</strong> electrons between<br />
atoms<br />
1916 G. N. Lewis introduced<br />
covalent bond consists <strong>of</strong> a pair <strong>of</strong> electrons<br />
shared between two atoms<br />
examples <strong>of</strong> molecular compounds:<br />
H 2 , Cl 2 , H 2 O, HCl, CO 2 , sugar<br />
ionic<br />
compound<br />
formation <strong>of</strong> hydrogen molecule (H 2 ) involves<br />
overlapping and pairing <strong>of</strong> 1s electron orbitals<br />
<strong>from</strong> two H atoms<br />
<strong>11</strong>
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