Stouffer,+Erika

Name: Potassium K **Boiling Point:** 759o C

**Melting Point:** 63.38o C

**Density:** 856 kg m~3

**Protons:** 19

**Electrons:** 19

**Neutrons:** 20

**Atomic Mass:** 39.10g

**Atomic Number:** 19

**Orbital Notation:** 1st~ 2

2nd~ 8

3rd~ 8

4th~ 1


 * Electron Configuration: 1s2, 2s2, 2p6, 3s2, 3p6, 4s1. **

**Valence Electrons:** 1


 * Discovered!!: **

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">**How:** studying from vegetable alkali.

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">**When:** Potassium was founded in1807.

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">**Who:** Sir Humphrey Davis was the genius that founded this element!

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">**Produced By:** Cathode.

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">**Chemical Properties:** <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">~Catches fire <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">~Explodes <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">~Very reactant <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">~Produces Hydrogen Gas

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">**Physical Properties:** <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">**Found:** <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">**Two Common Chemical reactions of K:** <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">~Explosion <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">~Mixing
 * <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">~ Soft
 * <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">~ Silvery, white
 * <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">~ Metal
 * <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">~Can float on water.
 * 1) <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">+ Caustic Potash, through electrolysis.

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">Uses: <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">*Soap <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">*Glass <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">*Rocks <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">*Foods

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">**Cost:** $65.00 for 100 grams of potassium.


 * <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">Pure State: **

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">Unusual facts: <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">+ Essential for human nutrition! <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">+ Alkali Metal <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">+ Soft enough to cut with a knife <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">+ Lightweight <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">+ Used as a heat transfer medium. <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">+ Made from the English word “potash.” © Annenberg Foundation 2012. All rights reserved.
 * <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 19px;">Bohr Model: **

Copyright 1997-2011 Chemtutor, LLC. All rights reserved.

WebElements: the periodic table on the WWW [[]] [|Copyright]1993-2011 [|Mark Winter] [[|The University of Sheffield]and WebElements Ltd, UK]. All rights reserved.