To determine whether people have worked enough to meet the requirements, the SSA requires people to earn a certain number of work credits. Work credits are essentially income that is assigned a value. In general, you must have accumulated 40 work credits (20 in the past 10 years) to be eligible for disability.
Bromine is a chemical element with symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. Its properties are thus intermediate between those of chlorine and iodine.
Bromide is a monovalent ion with -1 charge. Therefore, it has 36 electrons and 35 protons. The electron configuration of bromide is [Ar] 4s 2 3d 10 4p 6. Bromide exists in ionic compounds such as sodium bromide, calcium bromide and HBr.