What are the chemical and physical properties of hydrogen?

What are the chemical and physical properties of hydrogen?

Chemical properties of hydrogen – Health effects of hydrogen – Environmental effects of hydrogen

Atomic number 1
Electronegativity according to Pauling 2.1
Density 0.0899*10 -3 g.cm -3 at 20 °C
Melting point – 259.2 °C
Boiling point – 252.8 °C

What is the chemical symbol of hydrogen?


hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements.

How was hydrogen found?

How was it discovered? English scientist Henry Cavendish discovered hydrogen as an element in 1766. Cavendish ran an experiment using zinc and hydrochloric acid. He discovered hydrogen and also found that it produced water when it burned.

What is hydrogen made up of?

Composed of a single proton and a single electron, hydrogen is the simplest and most abundant element in the universe.

What are two chemical properties of hydrogen?

Hydrogen is a colorless, odorless, tasteless, and nonpoisonous gas under normal conditions on Earth. It typically exists as a diatomic molecule, meaning each molecule has two atoms of hydrogen; this is why pure hydrogen is commonly expressed as “H2“.

What describes a physical property of hydrogen?

At standard temperature and pressure, hydrogen is a nontoxic, nonmetallic, odorless, tasteless, colorless, and highly combustible diatomic gas with the molecular formula H2. Hydrogen is also prevalent on Earth in the form of chemical compounds such as hydrocarbons and water.

What is physical properties of hydrogen?

What are the main uses of hydrogen?

Hydrogen: uses

  • commercial fixation of nitrogen from the air in the Haber ammonia process.
  • hydrogenation of fats and oils.
  • methanol production, in hydrodealkylation, hydrocracking, and hydrodesulphurization.
  • rocket fuel.
  • welding.
  • production of hydrochloric acid.
  • reduction of metallic ores.

What are 5 facts about hydrogen?

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  • Hydrogen is the most abundant element on earth. Hydrogen is an alternative fuel that has very high energy content by weight.
  • Fuel cells can be used to power several applications.
  • Fuel cells are a clean way to produce power.
  • Fuel cell cars are very similar to traditional gasoline powered cars.

Which of these is an example of a physical property?

Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity. We can observe some physical properties, such as density and color, without changing the physical state of the matter observed.

What are the properties and uses of hydrogen?

Hydrogen also has many other uses. In the chemical industry it is used to make ammonia for agricultural fertiliser (the Haber process) and cyclohexane and methanol, which are intermediates in the production of plastics and pharmaceuticals. It is also used to remove sulfur from fuels during the oil-refining process.

What are typical properties of hydrogen?

What are the physical and chemical properties of hydrogen?

Physical and Chemical Properties. Hydrogen has two isotopes: deuterium (D; atomic weight 2.01410222) and tritium (T; atomic weight 3.0160497). Tritium is radioactive and emits very low energy β rays with a half-life of 12.26 years. The isotopes have different physical properties but quite similar chemical properties.

What is hydrogen on the periodic table?

Hydrogen is the chemical element with the symbol H and atomic number 1. It has a standard atomic weight of 1.008, meaning it is the lightest element in the periodic table. Hydrogen is the most common chemical element in the Universe, with 75% of all baryonic mass being hydrogen. Stars are made up of mostly hydrogen.

What is the name of the element with the symbol H?

For the racing team, see Element One. Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element in the periodic table. At standard conditions hydrogen is a gas of diatomic molecules having the formula H2.

What is the significance of hydrogen bonding in organic chemistry?

The hydrogen bond is responsible for many of the anomalous physical and chemical properties of compounds of N, O, and F. In particular, intermolecular hydrogen bonding is responsible for the high boiling point of water (100 °C) compared to the other group 16 hydrides that have much weaker hydrogen bonds.