1. Potassium.

2. Potassium Atomic number: 19 Symbol: K Period: 4 Group: 1 Protons: 19-Neutrons: 22-Electrons: 19 Boiling Point: 774 º C Structure: Cubic Isotopes: 3 Shells: 4 Atomic mass: 39.0983 g.mol – It’s a metal Density: 0.86 g/cc State of matter: Solid crystalline structure: The use of Potassium Oxide Combustible: Yes Two different Isotopes: 39K & 41K

3. Physical Properties & Description *Potassium is a pure silvery-white form, it has a dull sheen and it is very soft. Although it very reactive with air and Water. melting point is 63.25°C, boiling point is 760°C, specific gravity is 0.862 (20°C) It’s very easy to cut with a knife. Potassium and its salts will color flames violet.

4. Reactive Elements *Potassium is explosive to Water, Oxygen and moisture from Air. *Potassium is stronger than Zinc, so if Potassium is heated with Zinc chloride, it reacts to give Potassium chloride and Zinc

5. Commonly Identified Molecules Commonly identified molecules: Valinomycin it complexes with Potassium Tertraphenylborate: A potassium compound KcsA potassium channel High protein of specificity for potassium 40K, 41K & 39K-they’re reactive isotopes, it decays from argon-40 and calcium-40. They’re trapped inside minerals. The isotopes keep potassium tightly in minerals. Chemical form- Chloride. Mass for 40K: 39.9639992. Mass for 41K: 40.9618254. Mass for 39K: 38.9637074.

6. History of Potassium -Who discovered Potassium? Humphrey Davy -When was it discovered? October 6, 1807 Where was it discovered? Molten potash What are its uses? It is responsible for the function of cells, and it reduces blood pressure.

7. Potassium Isotopes Potassium -40: Is very radioactive, it was discovered in Potash, it uses Gas and Soap. Potassium -41: Is a stable isotope Potassium -39: Is a stable isotope

8. Nucleus Shell 1. Shell 2. Shell 3. Shell 4.

9. Neon

10. Atomic Number: 10 Symbol: Ne Atomic Mass: 20.18 Shells: 2,8 Melting Point: 24.53 K Period: 2 Group: VII Protons:10-Neutrons: 12-Electrons: 10 Boiling Point: 246.048 º C Melting Point: 248.67 º C Structure: Cubic Density: 0.9002 g/L Is it Combustible? Yes Two different Isotopes: 20NE, NE21 State of Matter: Gas

11. Properties of Neon & Description Neon is one of the lights of noble gasses, it is a colourless substance, it has the narrowest liquid range out of all the elements. Neon has 3 stable isotopes, it is the fourth most abundant in the universe and it is a colourless element. Atomic Mass Average: 20.1797 Boiling Point: 27.246K -245.904°C -410.6°F

12. History of Neon Who discovered it? William Ramsey & Morris W. When was it discovered? 1898 Where was it discovered? London What are its uses? To make high-voltage indicators, lightning arrestors, neon are used in making gas lasers.

13. Reactive Elements Neon doesn’t react with other Elements because it is a noble gas, and noble gasses don’t particularly do anything, this is the same for Helium.

14. Commonly identified Molecules Neon is an inert gas and it doesn’t normally bond with any other molecules. So it doesn’t have any relating to it.

15. Isotopes 20NE-Stable%Abundance=90.48 3 21NE-Stable %Abundance=0.27 1 22Ne-Stable %Abundance=9.25 3

16. Nucleus Shell 2 Shell 1