"Calcium Quiz" is a small knowledge level game to select the correct properties of the calcium chemical element. Fun educational game to study the atomic number, symbol, appearance, group, phase, number of electrons and crystal structure of the calcium. Chemistry learning game, suitable for online lessons and interactive classes. Free online game.
This chemistry class game include the following calcium properties:
Atomic number: 20
Appearance: Dull gray, silver
Contained in: Milk
Element Group: Alkaline earth metal
Electrons per shell: 2, 8, 8, 2
Phase at Standard Temperature and Pressure: Solid
Crystal structure: Face-centred cubic (fcc)
How to play Calcium Quiz
There are 8 properties of the calcium 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 calcium element card and finish the quiz. Every wrong choice reduces one mark line.
Know the chemical properties of the calcium and get +1 Knowledge Level.
Class subject: Calcium.
Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. It is the fifth most abundant element in Earth's crust and the third most abundant metal, after iron and aluminium. The most common calcium compound on Earth is calcium carbonate, found in limestone and the fossilised remnants of early sea life; gypsum, anhydrite, fluorite, and apatite are also sources of calcium.
Some calcium compounds were known to the ancients, though their chemistry was unknown until the seventeenth century. Pure calcium was isolated in 1808 via electrolysis of its oxide by Humphry Davy, who named the element.
Calcium is an essential element needed in large quantities. The Ca2+ ion acts as an electrolyte and is vital to the health of the muscular, circulatory, and digestive systems; is indispensable to the building of bone; and supports synthesis and function of blood cells. Calcium compounds are widely used in many industries: in foods and pharmaceuticals for calcium supplementation, in the paper industry as bleaches, as components in cement and electrical insulators, and in the manufacture of soaps. On the other hand, the metal in pure form has few applications due to its high reactivity.