1 / 16

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

kamana
Download Presentation

Potassium.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  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

More Related