What element has the symbol 'In'?

The story behind the answer

‘In’ is the chemical symbol for Indium (atomic number 49). The other options don’t match: Iron is Fe, Iodine is I, and Indane isn’t an element at all—it’s an organic compound (a hydrocarbon).

Indium is a soft, silvery post‑transition metal discovered in 1863 by its indigo-blue spectral line—hence the name “Indium.” It melts at about 157°C and is best known for making transparent, conductive coatings in touchscreens and LCDs (indium tin oxide, ITO). Memory tip: “In-dium is in displays”—link the symbol In with its role in screens to lock in the association.