Berilyum, magnezyum, kalsiyum, stronsiyum, baryum ve radyum toprak alkali metalleridir.
- Beryllium, magnesium, calcium, strontium, barium and radium are alkaline earth metals.
Doğal maden suyu kalsiyum, magnezyum, sodyum, potasyum ve ayrıca nitrat içerir.
- Natural mineral water contains calcium, magnesium, sodium, potassium as well as nitrate.
... Their shells, made of calcium and carbon, ...
... the hospitals fixed interest on the hillside deposit calcium oxides to cover ...