While specific positions will have unique requirements (example: Flight Attendant minimum age requirement is 21 years of age; see individual job descriptions), you must possess at least a H.S. diploma/GED equivalent, be at least 18 years of age, and possess current authorization to work in the U.S. to work at Delta.
Potassium (IPA: /pÉ(Ê)ËtasiÉm/) is a chemical element. It has the symbol K (Arabic: al qaljaâ â Latin: kalium) and atomic number 19 and an atomic mass of 39.098. Calcium (IPA: /ËkalsiÉm/) is the chemical element in the periodic table that has the symbol Ca and atomic number 20.
148,942 Contributions. Calcium   Calcium is the main component of your bones and teeth. It comprises 1.5% of your total body weight making it the most abundant metallic element in the human bodâ¦y. Calcium is classified as an alkaline-earth metal Calcium (Ca++) is soft and naturally silver/grey/white in color Atomic number is 20 atomic mass 40.08.