Essential Hydrogen Facts
- Element Name: Hydrogen
- Element Symbol: H
- Element Number: 1
- Element Category: nonmetal
- Atomic Weight: 1.00794(7)
- Electron Configuration: 1s1
- Melting Point: 13.99 K (−259.16 °C, −434.49 °F)
- Boiling Point: 20.271 K (−252.879 °C, −423.182 °F)
- Density at STP: 0.08988 g/L
- Oxidation States: -1, +1
- Electronegativity (Pauling Scale): 2.20
- Crystal Structure: Hexagonal
- Magnetic Ordering: Diamagnetic.
- Discovery: Cavendish , 1766. Cavendish prepared hydrogen by reacting metal with acid. Hydrogen was prepared for several years before it had been recognized as a definite element.
- Word Origin: Greek: hydro meaning water; genes meaning forming. The element was named by Lavoisier(1783).
Hydrogen Facts.
1-Hydrogen is that the most abundant element. About 90% of the atoms and 75% of the element mass of the universe is hydrogen, usually within the atomic state or as plasma. Although hydrogen is that the most abundant element within the physical body in terms of numbers of atoms of the element, it's only 3rd in abundance by mass, after oxygen and carbon, because hydrogen is so light. Hydrogen exists as a pure element on Earth as a diatomic gas, H2, but it's rare in Earth's atmosphere because it's light enough to flee gravity and bleed into space. The element remains common at the surface , where it's bound into water and hydrocarbons to be the third most abundant element.
2-There are three natural isotopes of hydrogen: protium, deuterium, and tritium. the foremost common isotope of hydrogen is protium, which has 1 proton, 0 neutrons, and 1 electron. This makes hydrogen the sole element which will have atoms with none neutrons! Deuterium has 1 proton, 1 neutron, and 1 electron. Although this isotope is heavier than protium, deuterium isn't radioactive. However, tritium does emit radiation. Tritium is that the isotope with 1 proton, 2 neutrons, and 1 electron.
3-Hydrogen gas is extremely flammable. it's used as a fuel by the spacecraft main engine and was related to the famous explosion of the Hindenburg airship. While many of us consider oxygen to be flammable, it actually doesn't burn. However, it's an oxidizer, which is why hydrogen is so explosive in air or with oxygen.
4-Hydrogen compounds commonly are called hydrides.
5-Hydrogen could also be produced by reacting metals with acids (e.g., zinc with hydrochloric acid).
6-The physical sort of hydrogen at temperature and pressure may be a colorless and odorless gas. The gas and liquid are nonmetals, but when hydrogen is compressed into a solid, the element is an alkaline metal . Solid crystalline metallic hydrogen has rock bottom density of any crystalline solid.
7-Hydrogen has many uses, though most hydrogen is employed for processing fossil fuels and within the production of ammonia. it's gaining importance as an alternate fuel that produces energy by combustion, almost like what happens in fuel engines. Hydrogen is additionally utilized in fuel cells that react hydrogen and oxygen to supply water and electricity.
8-In compounds, hydrogen can take a charge (H-) or a charge (H+).
9-Hydrogen is that the only atom that the Schrödinger equation has a particular solution.
10-Ionized deuterium displays a characteristic reddish or pink glow.
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