Calcium 29. September 2015elementadmin ◄ K Mg ▲ ▼ Zn Sc ► 20 Ca calcium 40.08 20 Ca 2 Ca litho Calcium ∙ calcium ∙ calcio ∙ calcio group II: RO melting point: 839°C boiling point: 1484°C density: 1.55 g/cm³
