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Which elements are classified as halogens?
Fluorine, Chlorine, Bromine, Iodine and Astatine.
Is astatine metal or non metal?
Astatine, with the symbol At and the atomic number 85, is usually classified at a metalloid, but this is in dispute. It is sometimes classified as a halogen, and possibly a metal. It is still being studied.
When was astatine found?
In 1940, astatine was produced in a lab at the University of California by the three scientists named Carson, Mackenzie, and Segre. This element is classified as a semi-metal and has the atomic number of 85.
What type of element is astatine?
Astatine is an element with the symbol At.
What is astatine?
The color of the element astatine is unknown.
How many valence electrons does astatine have?
Astatine has 125 neutrons
What is astatine chemical symbol?
The chemical symbol of astatine is At
What is the astatine chemical symbol?
The chemical symbol of astatine is At
How many protrons does astatine have?
Astatine has 85 protons.
What is the electronegativity of astatine?
The valence of astatine is -1.
What does francium astatine equal to?
francium plus (+) Astatine *
How is astatine used commercially?
Now, no commercial use for astatine; but the isotope astatine 211 was proposed for the radiotherapy of cancers.
