What does 'lead' translate to in German?

The translation of 'lead' to German as "Blei" is correct because "Blei" specifically refers to the chemical element lead, which has the atomic number 82 and is used in various applications, such as batteries and radiation shielding. This term is widely recognized and utilized in both scientific and everyday contexts when discussing this particular metal.

The other choices do not correspond to the meaning of 'lead' in the context of the chemical element. "Abgelaufen" generally means 'expired' or 'out of date,' which does not relate to the term 'lead.' "Gelenk" translates to 'joint,' which has no connection to lead in any sense. "Heber" means 'lever' and therefore also does not apply to the meaning of lead. Thus, "Blei" is the appropriate translation when referring to the metal lead.