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68 Lanthanide
Er

Erbium

RIS 0.065
Velocity
Rank#32
Co-citedYb
Physical properties
Category Lanthanide
Block f-block
State Solid
Config [Xe] 4f12 6s2
Electronegativity 1.24
Density 9.066 g/cm³
Melting 1802.0 K
Boiling 3141.0 K
Ionization 589.3 kJ/mol
Oxidation +2, +3
Discovered 1843 · Carl Gustaf Mosander
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
2026 · 100th percentile for its age
Nature Communications · 2025 · 100th percentile for its age
Laser & Photonics Review · 2025 · 100th percentile for its age
Top papers, last 5 years
2026 · 100th percentile for its age
Nature Communications · 2025 · 100th percentile for its age
Laser & Photonics Review · 2025 · 100th percentile for its age
Newest papers
2026 · 100th percentile for its age
Advanced Synthesis & Catalysis · 2026 · 98th percentile for its age
Optics Express · 2026 · 97th percentile for its age

These are the nine that matter most. There are more — browse all of them free.

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Erbium's history

Research intensity over time

Erbium's history

Erbium's research intensity, 1900 → today.

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Advanced visualization features

Erbium's associations

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

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