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1
Reactive Nonmetal
H
Hydrogen
EPS
0.705
Velocity
+0.000
Rank
#2
Co-cited
N
Category
Nonmetal
Block
s-block
State
Gas
Config
1s1
Electronegativity
2.2
Density
8.988e-05 g/cm³
Melting
14.01 K
Boiling
20.28 K
Ionization
1312.0 kJ/mol
Oxidation
-1, +1
Discovered
1766 · Henry Cavendish
Top papers of all time
The green hydrogen ambition and implementation gap
Nature Energy · 2025
Proton Exchange Membrane (PEM) Water Electrolysis: Cell-Level Considerations for Gigawatt-Scale Deployment
Chemical Reviews · 2025
Hydrogen Storage Technology, and Its Challenges: A Review
Catalysts · 2025
Top papers, last 5 years
The green hydrogen ambition and implementation gap
Nature Energy · 2025
Proton Exchange Membrane (PEM) Water Electrolysis: Cell-Level Considerations for Gigawatt-Scale Deployment
Chemical Reviews · 2025
Hydrogen Storage Technology, and Its Challenges: A Review
Catalysts · 2025
Newest papers
Hydroxide-activated hydrogen spillover-mediated nitrogen reduction pathways for efficient ammonia synthesis
eScience · 2026
Bio-derived liquid organic hydrogen carriers for reversible hydrogen storage
International Journal of Hydrogen Energy · 2026
Fuel Cell Micro-CHP: Analysis of Hydrogen Solid Storage and Artificial Photosynthesis Hydrogen Production
Hydrogen · 2026
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