4What is Calcium? Calcium is reactive and soft for a metal. It can be cut with a knife.Calcium is a silvery-white, hard alkaline-earth metal that occurs in limestone and gypsum.
5Info on CalciumCalcium was discovered in 1808 by Sir Humphrey Davy in England.Calcium comes from the Latin word calsis (lime).It is one of the group 2 elements.
6Basic Information! Symbol: Ca Mass Number: 48 Number of Electrons: 20 Classification: Alkaline Earth MetalAtomic Number: 20Atomic Mass: or amuMelting Point: 839˚CBoiling Point: 1484˚CColor: SilveryPeriod:4Group: 2A or 2
7Where Is Calcium Found?Calcium is found in rocks, chalk, and seashells.It is found in the bones, muscles, and nerves of animals and in many different plants.There is a lot of calcium in milk and other dairy products.There is a lot of calcium in Orange Juice.There is also a good amount of calcium in green leafy vegetables.They are also located in Salmons.
9Facts about CalciumAbout 99% of the calcium in your body is stored in your bones and teeth. It's what keeps your bones and teeth strong.If you don’t get enough calcium your bones and teeth won't have enough calcium, and they'll become weak and brittle.Calcium isn't found free in nature, but it can be purified into a soft silvery-white metal.
10Uses of Calcium By Humans Calcium compounds are absolutely necessary for teeth and bones.Calcium also helps muscles work properly.Without calcium, muscles and bones can’t function.
11Common Isotopes Ca-45 Ca-40 Ca-46 Ca-41 Ca-47 Ca-42 Ca-48 Ca-43 Ca-49 The common isotopes of calcium are:Ca-45Ca-46Ca-47Ca-48Ca-49Ca-40Ca-41Ca-42Ca-43Ca-44
12Thank You Thank you for listening to my presentation! I hope you enjoyed it!