Name |
Astatine |
Symbol |
At |
Atomic Number |
85 |
Atomic Mass |
210 |
Number of Protons |
85 |
Number of Electrons |
85 |
Number of Neutrons |
125 |
Melting Point |
302 degrees Celcius |
Boiling Point |
336.8 degrees Celcius |
Normal Phase |
Solid |
Family |
Halogens |
Period |
6 |
Group |
16 |
Origin of Name |
From the Greek word astatos, meaning unstable |
Date and Place of Discovery |
In 1940 at the University of California |
Interesting Facts |
1. It is highly reactive 2. It behaves like other Halogens, especially like iodine and may accumulate in the human thyroid gland 3. It is more metallic than iodine 4. Because it is scarce, it is mostly produced by bombarding bismuth with alpha particles |
Common Uses |
It is found in nickels and a part of the Earth's Crust |
Name |
Astatine |
Symbol |
At |
Atomic Number |
85 |
Atomic Mass |
210 |
Number of Protons |
85 |
Number of Electrons |
85 |
Number of Neutrons |
125 |
Melting Point |
Value |
Boiling Point |
Value |
Normal Phase |
Solid |
Family |
Halogens |
Period |
Value |
Group |
Value |