1. Challenge 1 T. Trimpe 2008 http://sciencespot.net/

2. Use a periodic table and your knowledge of the element families to identify each element by name. 1. I am a member of the Carbon family with 14 electrons. 2. I am a member of the Alkaline Earth family and would have 6 energy levels. 3. I am a halide that is a liquid at room temperature. 4. I am a transition metal with 79 protons. 5. I am a member of the Alkali Metal family with 20 neutrons.

3. The answers are … 1. I am a member of the Carbon family with 14 electrons. 2. I am a member of the Alkaline Earth family and would have 6 energy levels. 3. I am a halide that is a liquid at room temperature. 4. I am a transition metal with 79 protons. 5. I am a member of the Alkali Metal family with 20 neutrons. Silicon Barium Bromine Gold Potassium