Indium (In)

Atomic #-49

When in doubt, Indiums out.

By: Charli Joiner

Electron configuration: [Kr] 4d10 5s2 5p1

Atomic Mass- 49

# of protons- 49

# of neutrons- 66

it is a metal and in the aluminum family

$1-$5 per gram

It was discovered in 1863 by Ferdinand Reich and Hieronymus Theodor Richter