1. Symbol: H
2. Atomic Number: 1
3. Atomic Mass: 1.008
4. Group: 1 (Alkali Metals)
5. Period: 1
6. Block: s-block
7. Electron Configuration: 1s¹
8. State at Room Temperature: Gas
9. Melting Point: -259.16°C (-434.49°F)
10. Boiling Point: -252.879°C (-423.182°F)
11. Density: 0.08988 g/L (gas), 0.07 g/cm³ (liquid)
12. Isotopes: Protium (¹H), Deuterium (²H), Tritium (³H)
13. Most Abundant Isotope: Protium (¹H)
14. Phase at STP: Gas
15. Color: Colorless
16. Odor: Odorless
17. Taste: Tasteless
18. Flammability: Highly flammable
19. Combustion: Burns with oxygen to form water (H₂O)
20. Electron Energy Levels: Multiple energy levels
21. Spin Isomers: Orthohydrogen and Parahydrogen
22. Phases: Gas, Liquid, Plasma
23. Compounds: Forms covalent and organic compounds, hydrides, protons, and acids
24. Thermal Properties: Heat of fusion: 0.117 kJ/mol, Heat of vaporization: 0.904 kJ/mol, Molar heat capacity: 28.836 J/(mol·K)
25. Vapor Pressure: 1 Pa, 10 Pa, 100 Pa
26. Discovery: Discovered by Henry Cavendish
27. Cosmic Prevalence: Most abundant element in the universe
28. Production Methods: Steam reforming, partial oxidation of hydrocarbons, water electrolysis, methane pyrolysis, thermochemical methods, biohydrogen
29. Applications: Petrochemical industry, hydrogenation, coolant, energy carrier, semiconductor industry, niche and evolving uses
30. Biological Reactions: Present in all animal and vegetable tissue, part of water in oceans, ice packs, rivers, lakes, and the atmosphere
31. Safety and Precautions: Highly flammable, requires careful handling and storage
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