Shanxian Chemical

SUPPLEMENTS
  • Home
  • Electronegativity Of Hydrogen
  • Electronegativity of Hydrogen

Electronegativity of Hydrogen

The electronegativity of hydrogen
If it is hydrogen, among the elements, its electronegativity can be investigated. Electronegativity, so the power of the balance atom to absorb electrons in the compound is also.

The electronegativity value of hydrogen is about 2.20 (Pauling scale). This value is higher than that of alkali metals and alkaline earth metals, so when combined with it, it often shows negative electricity. For example, in sodium hydride (NaH), hydrogen obtains one of the electrons of sodium, which is -1 valence.

However, compared with high electronegativity elements such as oxygen and fluorine, the electronegativity of hydrogen is lower. For example, in water molecules (H2O O), the electronegativity of oxygen is about 3.44, which is greater than that of hydrogen, so the electron cloud is biased towards the oxygen atom, and hydrogen is + 1 valence. Hydrogen, with its moderate electronegativity, plays an important role in the formation and properties of many compounds. In organic compounds, it is connected to carbon, nitrogen, oxygen and other elements, and plays a key role in the polarity of molecules and the formation of hydrogen bonds.