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37 Alkali Alkaline Earth
Rb

Rubidium

RIS 0.029
Velocity
Rank#56
Co-citedCs
Physical properties
Category Alkali Metal
Block s-block
State Solid
Config [Kr] 5s1
Electronegativity 0.82
Density 1.532 g/cm³
Melting 312.46 K
Boiling 961.0 K
Ionization 403.0 kJ/mol
Oxidation +1
Discovered 1861 · Robert Bunsen, Gustav Kirchhoff
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
Science · 2025 · 100th percentile for its age
Nature Communications · 2025 · 97th percentile for its age
Science · 2024 · 99th percentile for its age
Top papers, last 5 years
Science · 2025 · 100th percentile for its age
Nature Communications · 2025 · 97th percentile for its age
Science · 2024 · 99th percentile for its age
Newest papers
Chemical Communications · 2026 · 97th percentile for its age
Separation and Purification Technology · 2026 · 95th percentile for its age
Chaos, Solitons & Fractals · 2026 · 92nd percentile for its age

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

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Rubidium's history

Research intensity over time

Rubidium's history

Rubidium's research intensity, 1900 → today.

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Advanced visualization features

Rubidium's associations

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

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