2SAS #26 - 34 p.132

26) Metallic elements are more likely to lose electrons and become cations.

27) They are un-reactive.

28)  a) cation
       b) cation
       c) anion
       d) cation
       e) anion
       f) cation
       g) cation
       h) anion

29) B pair is more chemically similar

30) (156 + 254) / 2 = 205 pm

31) a) an apple rotting changes from red to brown which is a chemical reaction because the
          apple oxidizes with the air
          A physical color change is when someone paints a metal car
      b) The release of heat during a chemical reaction is a chemical change
          Physical - melting something
      c) Physical - water boiling
          Chemical - metal reaction with hydrofluoric acid

32) a) Bromine
      b) Silicone

34) Cobalt and Nickel are out of order if they were organized by atomic mass.  Also thorium and Protactinium.