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Unformatted text preview: MOLECULES
• Carbon atoms have four electrons in the outer shell—they can form covalent bonds with four other atoms. FIGURE 2.4 COVALENT BONDING (PART 1) 9 CONCEPT 2.2 ATOMS INTERACT AND FORM MOLECULES
• Properties of molecules are influenced by characteristics of the covalent bonds:
• These characteristics include:
Strength and stability
Degree of sharing electrons CONCEPT 2.2 ATOMS INTERACT AND FORM MOLECULES
• Orientation—length, angle, and direction of bonds between any two elements are always the same.
• Example: Methane always forms a tetrahedron. 10 CONCEPT 2.2 ATOMS INTERACT AND FORM MOLECULES
• Strength and stability—covalent bonds are very strong; it takes a lot of energy to break them.
• Multiple bonds
• Single ‐ sharing 1 pair of electrons
• Double ‐ sharing 2 pairs of electrons
• Triple ‐ sharing 3 pairs of electrons C‐H C=C
N≡N CONCEPT 2.2 ATOMS INTERACT AND FORM MOLECULES
• Degree of sharing electrons is not always e...
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This note was uploaded on 01/31/2014 for the course BSC 2010 taught by Professor Bowes during the Winter '08 term at University of Florida.
- Winter '08