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85 Reactive Nonmetal
At

Astatine

RIS 0.003
Velocity
Rank#94
Co-citedFr
Physical properties
Category Nonmetal
Block p-block
State Solid
Config [Xe] 4f14 5d10 6s2 6p5
Electronegativity 2.2
Density 7.0 g/cm³
Melting 575.0 K
Boiling 610.0 K
Ionization 899.0 kJ/mol
Oxidation -1, +1, +3, +5, +7
Discovered 1940 · Dale R. Corson, Kenneth Ross MacKenzie, Emilio Segre
10-year trends

Research trends from the past decade for this element.

Research trends from the past decade: publication rate, citation momentum, emerging applications. A bird's-eye view of how the field has been evolving.

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Top papers of all time
Annals of Nuclear Medicine · 2025 · 98th percentile for its age
Medicinal Research Reviews · 2025 · 88th percentile for its age
EJNMMI Radiopharmacy and Chemistry · 2024 · 89th percentile for its age
Top papers, last 5 years
Annals of Nuclear Medicine · 2025 · 98th percentile for its age
Medicinal Research Reviews · 2025 · 88th percentile for its age
EJNMMI Radiopharmacy and Chemistry · 2024 · 89th percentile for its age
Newest papers
EJNMMI Radiopharmacy and Chemistry · 2026 · 87th percentile for its age
Nuclear Medicine and Biology · 2026 · 87th percentile for its age
Journal of the American Chemical Society · 2026 · 87th percentile for its age

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Astatine's history

Research intensity over time

Astatine's history

Astatine's research intensity, 1900 → today.

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Advanced visualization features

Astatine's associations

These shapes are citation clusters: groups of papers that cite each other. They show why Astatine is moving, not just that it is.

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