BIOL 1100 Lecture Notes - Lecture 3: Chemical Polarity, Partial Charge, Atomic Number
Document Summary
Water and carbon: the chemical basis of life: mars rover, discovery of water and life (possible future resources due to depletion on earth, basic atomic structure, atoms composed o: Elements: hydrogen, oxygen, nitrogen, carbon, sodium, magnesium, phosphorus, sulfur, chlorine. # of unpaired electrons = valence: stabilize electrons through pairing, air concentration. Co2 0. 04 : n2 60-70, chemical bonding, unfilled electron orbitals allow the formation of chemical bonds. Atoms most stable when each electron orbital is filled: molecules held together by covalent bonds. Anion (gains an electron and becomes positive: increase of polarity; equal sharing of electrons to transfer of electrons (nonpolar covalent bonds (atoms have no charge) polar covalent bonds (atoms have partial charge) ionic. Bonds (atoms have full charge): why is water such an efficient solvent, covalent bonds in water are polar, oxygen has a greater electronegativity than hydrogen, hydrogen bonds.
