Chemistry (Bolton)

Week 12

Monday 20 November

• Chapter Five Test

Tuesday 21 November

• grade C5 MC questions
• wash desks (soap & scrubbies)
• C6-1 pp. 161-163
• chemical bond
• valence electrons
• nucleus
• ionic bonding
• transfer of electrons
• Na gives one electron to Cl:
• Na = [Ne]3s¹ --> [He]2s²2p⁶ --> Na⁺
• Cl = [Ne]3s²3p⁵ --> [Ne]3s²3p⁶ -->Cl^-
• covalent bonding
• sharing of electron pairs
• polar
• nonpolar-covalent bond
• ∆EN of 0 to 0.3 (see p. 151)
• polar-covalent bond
• ∆EN of 0.3 to 1.7
• ionic
• ∆EN 1.7 to 3.3
• homework
• read pp. 161-163
• p. 163 #1, 3 (use EN table on p. 151), 4 (in notes)

Wednesday 22 November

• video: ORIGINS "How Life Began"