Compare Element Properties

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Property	At Astatine	? N/A
Atomic number	85	N/A
Symbol	At	N/A
Name	Astatine	N/A
Category	halogen	N/A
Standard Atomic Weight	210 u	N/A
Period	6	N/A
Group	17	N/A
Block	p	N/A
Phase at STP	solid	N/A
Electron configuration	[Xe]6s24f145d106p5	N/A
Oxidation states	[-1, 1, 3, 5, 7]	N/A
Electronegativity (Pauling)	2.2	N/A
Electron affinity	2.391 eV	N/A
Density	7000 kg/m³	N/A
Melting point	301.85 °C	N/A
Boiling point	-273.15 °C	N/A
Discovery year	1940	N/A