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Unformatted text preview: a. 1 st shell - holds 2 electrons b. 2 nd shell - holds 8 c. 3 rd shell - holds 18 d. Covalent bond - atoms sharing electrons - stable bond e. Ionic bond - one atom grabs electrons from another - not as stable f. Rule of 8's - shells are relatively stable with 8 electrons in outer shell 6. Ion - atom that has lost or gained (an) electron(s) 7. Water (H2O) a. Polar covalent bonds - hydrogen bonds occur between water molecules b. Features of water i. High heat capacity ii. Solvent properties of water iii. Cushioning iv. Acid-base scale...
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- Spring '08