For other uses, see Calcium (disambiguation). 20 potassium ← calcium → scandium Mg ↑ Ca ↓ Sr periodic table General Name, Symbol, Number calcium, Ca, 20 Chemical series alkaline earth metals Group, Period, Block 2, 4, s Appearance silvery white Atomic mass 40.078(4) g/mol Electron configuration [Ar] 4s2 Electrons per shell 2, 8, 8, 2 Physical properties Phase solid Density (near r.t.) 1.55 g·cm−3 Liquid density at m.p. 1.378 g·cm−3 ...
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Calcium Articles

  • Hypercalcemia
    ... This patient summary on hypercalcemia is adapted from the PDQ summary written for health professionals by cancer experts. This and other credible information about cancer treatment, screening, prevent...
  • Kids and Their Bones: A Guide for Parents
    ... Typically, when parents think about their children's health, they don't think about their bones. But building healthy bones by adopting healthy nutritional and lifestyle habits in childhood is...
  • Renal Osteodystrophy
    ... The medical term "renal" describes things related to the kidneys. Renal osteodystrophy is a bone disease that occurs when your kidneys fail to maintain the proper levels of calcium and phosphorus in y...

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