April 2020
Intermediate to advanced
296 pages
5h 20m
English

That spectral line at 451 gave soft In its name,
For high-vac seals it’s hard to beat, its alloys help douse flame.
Produced in bulk from zinc ore’s seam,
four-five-one eye-enn
GROUP 13 METAL
Indium is a silvery, soft metal. It’s so soft, in fact, that it’s easy to mark with your fingernails. It takes its name from the intense indigo-colored line that appears at 451 nm in its atomic emission spectrum. The presence of this line in the spectrum of a solid precipitate ...