What was developed in 1860, is color coded, and there are only about one hundred and eighteen of me?
by ade1963 on June 30, 2012Q: I was developed in the late 1860’s, when you see me I am usually color-coded, there are now currently one hundred and eighteen of me. What am I?
Tags: trivia
Periodic table
http://en.wikipedia.org/wiki/Periodic_table
Mark (Uber Geek) says: on July 3, 2012 at 5:44 pm