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.
Bromine (Br) has atomic number 35. it has 35 electrons, and has one electron less of that of Krypton. so the configuration of Bromine is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p5. as it regains stable configuration of Krypton by just capturing one electron, its valancy is 1. and thus is very electronagative and very reactive. it can form cobalant bond with another atom of bromine to form molecular bromine (Br2) liquid.