Unit 1 Sec. B Summary HW 5

6/26/14

29) Copper metal and copper (II) ions are more similar chemically because copper metal has the ion Cu²⁺ and the copper (II) ion has the ion Cu²⁺ which is the same.

30) The diameter of calcium ion is 205 pm.

31) a. Bromine

b. Silicon

32) The order of the elements in the modern periodic table would be different from Mendeleev’s table and the grouping of the metals, nonmetals, and metalloids would change.

33) The “sacrificial anode” would prevent the metals from reactivity.