hydrogen
- Noun:
- A chemical element: Hydrogen is a nonmetallic, univalent element. It is normally a colorless, odorless, highly flammable diatomic gas. It is the simplest, lightest, and most abundant chemical element in the universe.
- Hydrogen is represented by the symbol H and has the atomic number 1.
- It is a fundamental component of water (H₂O) and most organic compounds.
- As a gas (H₂), it is used in various industrial processes and as a potential clean fuel.
- Noun:
- Stars like the Sun are primarily composed of hydrogen and helium.
- The laboratory experiment involved collecting hydrogen over water.
- Hydrogen fuel cells produce electricity through a chemical reaction between hydrogen and oxygen.
"Hydrogen bond": A weak electrostatic attraction between a hydrogen atom in one molecule and an electronegative atom (like oxygen or nitrogen) in another. This bond is crucial in biology and chemistry.
- The unique properties of water are largely due to hydrogen bonds between its molecules.
"Atomic hydrogen": Hydrogen in its monatomic form (H), as opposed to its more common diatomic molecular form (H₂).
- Atomic hydrogen is highly reactive and is used in certain welding processes.
Deuterium (n): An isotope of hydrogen (²H or D) with one neutron in its nucleus, often called "heavy hydrogen."
- Deuterium is used in nuclear reactors and as a tracer in chemical reactions.
Tritium (n): A radioactive isotope of hydrogen (³H or T) with two neutrons in its nucleus.
- Tritium is used in self-luminous devices like exit signs.
Hydrogenate (v): To treat or combine with hydrogen, often in reference to fats and oils.
- Food manufacturers sometimes hydrogenate vegetable oils to make them more solid.
- Element 1: Referring to its position on the periodic table.
- H: Its chemical symbol.
"Hydrogen peroxide": A chemical compound with the formula H₂O₂, used as a disinfectant and bleaching agent.
- She used hydrogen peroxide to clean the minor cut.
"Hydrogen sulfide": A toxic gas with the formula H₂S, known for its characteristic rotten egg smell.
- The presence of hydrogen sulfide in the well water was a cause for concern.
-
a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
Khám phá thêm
Các từ liên quan
Từ đồng nghĩa
Từ chứa "hydrogen"
Từ có nhắc đến "hydrogen"
