A Visual Encyclopedia of the Periodic Table

The salt forms part of rocks deep underground before it is dissolved by the stream and flows into the pools. Evaporation can als ...

30 Alkali Metals Laboratory sample of pure potassium in an airless vial Potash Forms Potassium 19 K Soft and shiny solid This mi ...

31 Alkali Metals Sweet potato Banana Avocado Potassium-rich fertilizer is easily absorbed by the soil and boosts plant growth. S ...

32 Alkali Metals Rubidium makes up only about 1 per cent of this mineral. Forms Rubidium Rb 37 Rubidium was named after the Lati ...

33 Alkali Metals Uses rubidium in it but is very rare. Rubidium atoms are sensitive to light and can be used in photoelectric ce ...

34 Alkali Metals Caesium Cs 55 Forms Uses As the most reactive metal on Earth, caesium explodes into flames if in contact with a ...

35 Alkali Metals Francium Fr 87 Francium is the rarest natural element on Earth. Scientists think there may be just 30 g (1.1 oz ...

Barium (Ba) crystals turn black in air. 036-037_Alkaline_Earth_Metals_Opener.indd 36 02/12/16 6:52 pm ...

Alkaline Earth Metals Be Ca Mg Ba Sr Ra Atomic structure The alkaline earth metals have two electrons in their outermost electro ...

38 Alkaline Earth Metals Forms Beryllium Be 4 This widely used element gets its name from the Greek word ber yllos, after which ...

39 Alkaline Earth Metals This ber yllium disc can withstand higher temperatures than a disc made of aluminium. These ber yllium ...

40 Alkaline Earth Metals This green, magnesium-rich mineral forms deep underground. Shiny, grey cr ystallized form Forms Magnesi ...

41 Alkaline Earth Metals White lights from burning magnesium compounds This widely used cement contains powdered magnesium oxide ...

42 Alkaline Earth Metals Forms contain the compound calcium phosphate. The hard, outer layers of many other animals, such as the ...

43 Alkaline Earth Metals Orange Milk Broccoli Oranges are also a good source of calcium, and most orange juices have extra calci ...

FLY GEYSER The multicoloured Fly Geyser in the Black Rock Desert of Nevada, USA, is made from a mound of calcium carbonate rock. ...

Fly Geyser is not a natural wonder. It was made by accident in 1964 when engineers were drilling a well to find a source of hot ...

46 Alkaline Earth Metals This mineral is found in some microorganisms. Soft, brittle cr ystals Forms Strontium Sr 38 38 38 50 St ...

47 Uses The bowl’s smooth finish is due to strontium oxide. Lights in unmanned buoys can be powered by radioactive strontium. th ...

48 Alkaline Earth Metals Petal-like shapes form in the desert when sand mixes with barite or with gypsum. This mineral is used t ...