1. Cl

2. Chlorine Atomic # Atomic Symbol Atomic Mass # of protons # of electrons # of neutrons State of matter at Room Temp. 17 Cl 35.452 17 35.452 rounds to 35. 35 – 17 = 18 Gas Cl Chlorine 17 35.452 This is a lot closer to rounding to the next integer than we are used to. This is because isotopes of Cl are common.

3. Chlorine Cl Chlorine 17 35.452

4. Gains one electron to be like the Noble gas Argon. The ion is Cl - Chlorine Cl Chlorine 17 35.452

5. Chlorine is a Halogen and, like all Halogens, gains one electron or bonds easily with Alkali Metals. Chlorine gas, Cl 2, is poisonous and was even used as a weapon in WWI. Just a month ago 3 trucks filled with Chorine gas were detonated in Iraq by insurgents. Chlorine Cl Chlorine 17 35.452

6. Chlorine also reacts well with most element and is therefore used in cleaning products and to treat water for disease. Chlorine is used to purify water worldwide. Chlorine Cl Chlorine 17 35.452

7. Chlorine is one of the two elements in salt along with Sodium (NaCl). Chlorine is also found in Hydrochloric acid, HCl, which is used in many chemical reactions as well as in household cleaning products. Chlorine Cl Chlorine 17 35.452