Matching Pairs Microbiology chapter 2 Online version Chemitstry types of chemical bonds and molecules by misael Lopez 1 nonpolar covalent bond 2 Ionic bond 3 Van der Waals forces 4 Polar covalent bond 5 Covalent bond 6 Molecules 7 Cations 8 Compound 9 Ions 10 Anions 11 Hydrogen bonds linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound - Unequal sharing of electrons - Somewhat weaker bond than its counterpart. - Weak chemical bonds - Always involves a hydrogen atom (+) attracted to an oxygen (-) or nitrogen (-) - Weakest of intermolecular forces - Dependent on interatomic distance -Electrically charged atoms, molecules, particles. ~ + or - due to electron loss or gain Redox reactions - Two or more different elements joined together chemically - Result from a sharing of electrons - usually the strongest chemical bonds - Positively charged ions - Loss of electron(s) - Negatively charged ions - Gain of electron(s) - Equal sharing of electrons - electrons are equally distributed - Two or more atoms linked by chemical bonds formed by their valence electrons.