| @mjenks and Koltrane...and Carbon makes 4
@darkmatter...and Rutherfordium
Could have also included copper and cobalt
For those with more than a pair:
Meitnerium, Mercury, Mendelevium
Nickel, Nitrogen, Niobium
Hafnium, Hassium, Hahnium
Neilsborium, Neodymium, Neon, Neptunium
As well as trios with PR, TE, and Th....sounds like the making of another quiz... |