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.
The easiest way to determine the number of protons in an element is to look at its atomic number. The atomic number is printed above the element's symbol on the periodic table. Calcium has an atomic number of 20, so it has 20 protons. Finding the number of neutrons in an element is slightly more difficult. The number of neutrons present corresponds to the element's mass number less the number of protons in the element.