How many unpaired electrons does indium have?
Answer: Indium has 1 unpaired electron.
Explanation: The number of unpaired electrons in an atom is determined by its electron configuration. Indium (In), with an atomic number of 49, has an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p1. This configuration indicates that the outermost electron shell is the fifth shell (5p1), and it contains one unpaired electron in the 5p subshell.