Atomic # = 85
Atomic weight = 210
At any given time, there is only 25 g of Astatine on Earth. This element is so rare that very little is known about its chemistry. Thus, the question mark!
Atomic # = 85
Atomic weight = 210
At any given time, there is only 25 g of Astatine on Earth. This element is so rare that very little is known about its chemistry. Thus, the question mark!