Submitted by Chip Nataro / Lafayette College on Fri, 04/20/2018 - 10:27

For names with an odd number of letters the center letter must be a valid symbol. For names with an even number of letters the center two letters must be a valid symbol.

Christine Thomas / Ohio State University
I probably can't count, but tantalum and astatine for the win!
Fri, 04/20/2018 - 20:25 Permalink