Not known but very probable a dark color.
It is a silvery white solid.
Astatine is not a mineral but a chemical element. Astatine can be obtained as a pure element but in extremely small quantities.
The element with the atomic number 85 is Astatine (At). Astatine is a Radioactive Halogen in Group 17(7) of the Periodic Table. Astatine has 85 electrons in 6 shells with 7 electrons in the outer shell. Astatine is the third radioactive element on the Periodic Table.
The chemical element with atomic number 85 is astatine. It is a rare and highly radioactive element that occurs naturally in trace amounts. Astatine is part of the halogen group on the periodic table.
The 85th element on the Periodic Table of Elements is astatine (At). It is a highly radioactive element and the heaviest known halogen. Astatine is rare and is primarily produced as a result of decay processes in uranium ores.
That is in The Science in matter. It's normal phase is Halogen.
Not sure what you're looking for here. Astatine is not "expected" to be any colour. It *is* a black crystalline solid, if one can keep it as a solid long enough to have a good look. It sublimes (translates from a solid to a gas) quite readily at STP. Perform a Google image search if you wish to see it. Cheers!
Astatine is a radioactive element that is expected to exist as a solid at room temperature. It has a very short half-life and is not found in nature in significant quantities, making it difficult to study its physical form at standard conditions.
Astatine is an element with the symbol At.
At 20 degrees Celsius, astatine would likely be a solid. Astatine is a rare and highly radioactive element with a melting point of around 302 degrees Celsius, so it would typically exist as a solid at room temperature.
Iodine, Astatine, Uus
Astatine is a halogen element that exists as a solid at room temperature. It is a very rare and radioactive element, with a half-life of only a few hours for its most stable isotopes.
Astatine is a solid at room temperature because of its intramolecular attraction. It is a chemical that is radioactive with a symbol of At and an atomic number of 85.
The color of the element astatine is unknown.
Astatine is a solid at room temperature.
It is a silvery white solid.
Astatine is not a mineral but a chemical element. Astatine can be obtained as a pure element but in extremely small quantities.