| Science > Chemistry > Periodic Table of Elements > Calcium |
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| Atomic Number of Calcium | 20 |
| Atomic Symbol of Calcium | Ca |
| Atomic Weight of Calcium | 40.078 |
| Color of Calcium | silver-grey |
| Density of Calcium | 1.550 g/cubic centimeter |
| Melting Point of Calcium | 842 degrees C / 1548 degrees F |
| Boiling Point of Calcium | 1484 degrees C / 2703 degrees F |
| Calcium State At Room Temp | solid |
| Classification of Calcium | metallic - alkaline earth metal |
| Date Calcium Was Discovered | 1808 |
| Facts on Calcium | Calcium is an alkaline earth metal and reactive element. Calcium makes up a large portion of your skeleton and teeth and helps your bones grow while keeping them strong. Foods with calcium include milk, yogurt, cheese, orange juice, salmon and cottage cheese. Calcium is an essential element for living organisms as it forms part of cell walls and is important for blood clotting. The movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes as well. Calcium becomes hard when dissolved in water. Calcium is found in common compounds such as lime, cement, chalk and limestone. Calcium carbonate is the basis for the cement industry. Sea shells are also formed from calcium. Calcium can neutralize acid. It is the 5th most abundant element in the earths crust. |
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