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.
If an atom of tin has a mass number of 118 and an atomic number of 50, how many neutrons are in its nucleus? 68 Most calcium atoms have an atomic number of 20 and a mass number of 49, but some calcium atoms have a mass number of 48. What word could you use to describe these two kinds of calcium atoms? Isotopes