[rwfok]

The element with atomic number 80 is mercury [Hg].

Uh...yeah, I know. A failed attempt at being facetious, sorry.

[goldbux]

No need to apologize.

Much easier to use a range of 118 element numbers than to compose lame arithmetic using nine planets to estimate my IN post landing #.

Elements with atomic numbers 95 – 118 have only been synthesized in Labs or nuclear reactors / explosions.