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Interactive Structure of the Potassium.

"Potassium Quiz" is a small knowledge level game to select the correct properties of the potassium chemical element. Fun educational game to study the atomic number, symbol, appearance, group, phase, number of electrons and crystal structure of the potassium. Chemistry learning game, suitable for online lessons and interactive classes. Free online game.

This chemistry class game include the following potassium properties:
  • Symbol: K
  • Atomic number: 19
  • Appearance: Silvery gray
  • Contained in: Vegetables
  • Element Group: Alkali metal
  • Electrons per shell: 2, 8, 8, 1
  • Phase at Standard Temperature and Pressure: Solid
  • Crystal structure: body-centered cubic (bcc)
Potassium Quiz Educational Game

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How to play Potassium Quiz

There are 8 properties of the potassium chemical element to the left and right of the screen. Press the "Choose" button to select the correct property among 3 possible answers. Do this for all 8 properties to clear the potassium element card and finish the quiz. Every wrong choice reduces one mark line.

Knowledge Achievements:
Know the chemical properties of the potassium and get +1 Knowledge Level.
Difficulty: Medium.

Potassium Quiz Screenshot

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Class subject: Potassium.

Potassium is a chemical element with the symbol K and atomic number 19. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure. It was first isolated from potash, the ashes of plants, from which its name derives. Elemental potassium reacts vigorously with water, generating sufficient heat to ignite hydrogen emitted in the reaction, and burning with a lilac-colored flame. It is found dissolved in sea water and occurs in many minerals such as orthoclase, a common constituent of granites and other igneous rocks.

Potassium is the second least dense metal after lithium. It is a soft solid with a low melting point, and can be easily cut with a knife. Freshly cut potassium is silvery in appearance, but it begins to tarnish toward gray immediately on exposure to air. Potassium is the eighth or ninth most common element by mass in the human body, so that a 60 kg adult contains a total of about 120 g of potassium. The body has about as much potassium as sulfur and chlorine, and only calcium and phosphorus are more abundant.

Potassium is present in all fruits, vegetables, meat and fish. Foods with high potassium concentrations include yam, parsley, dried apricots, milk, chocolate, all nuts, potatoes, bamboo shoots, bananas, avocados, coconut water, soybeans, and bran. Most industrial applications of potassium exploit the high solubility in water of potassium compounds, such as potassium soaps. Heavy crop production rapidly depletes the soil of potassium, and this can be remedied with agricultural fertilizers containing potassium, accounting for 95% of global potassium chemical production.

Potassium Chemical Card

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