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Potassium.

Potassium. 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

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Potassium.

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  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 4. Shell 3.

  9. Neon

  10. Neon • 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 1 Shell 2

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