Which chemical element has the symbol Re in the periodic table?
Correct answer: Rhenium

Smeeg
Player: Coco, So why have you typed 100 Billion?

Dolores Allanson
Player: Coco, Thanks. Amazing.

Player Leuken
So, how is it used? How does it contribute into world?

Player: Coco
Rhenium's radioactive isotope has a half-life of around 100,000,000,000 years - yep, a BILLION years.