Hydrides

Hydrides . There are two types of hydrides: metallic and hydrazides .

Summary

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• 1 oxidation state
• 2 Hydrides of acidic non-metals
  • 1 Other non-metal hydrides
• 3 Hydrides of metals
• 4 Sources

Oxidation state

In a hydride the oxidation state of Hydrogen is -1

Acidic non-metal hydrides

• They are formulated by writing the hydrogen symbol first and then the element symbol. Then the valences are exchanged . Elements such as sulfur , selenium, and tellurium are combined with hydrogen with valence 2, and elements such as fluorine , chlorine , bromine, and iodine , with valence 1.
• They are named by adding the ending uro at the root of the nonmetal nameand then specifying hydrogen:

HF → fluorine hydrogen uro

HCl → Hydrogen Chloride

HBr → hydrogen bromide

HI → hydrogen iodine

H ₂ S → hydrogen sulfide

H ₂ Se → selen hydrogen uro

H ₂ Te → telel uro hydrogen

Other non-metal hydrides

• They are formulated by first indicating the element symbol and then the hydrogen symbol. Then the valences are exchanged.
• All these compounds receive traditional names accepted by the IUPAC, and are the ones that are usually used by chemists. The most important are:

NH ₃ → ammonia

CH ₄ → methane

Metal hydrides

• They are formulated by first writing the symbol of the metallic element
• They are named with the word hydride followed by the name of metal.

Example:

LiH → lithium hydride

CaH ₂ → calcium hydride

SrH ₂ → strontium hydride

Metal hydrides

They are the result of the union between hydrogen and a metallic element

metal + hydrogen = metal hydride 2Li + H ₂ —— 2LiH Metal hydrides are characterized by being the only compounds in which hydrogen works as an oxidation number of 1-. To write the formula for a metal hydride, first write the symbol of the metallic element (positive part) and then that of hydrogen (negative part). For example, the hydride formula that results from combining calcium with hydrogen is as follows:

• Ca ²⁺
• H ^1-

To name them, the word hydride, the preposition of and the name of the metallic element are used. in the gin system the -ico and -oso endings are used to indicate the highest and lowest oxidation number of the metallic element, respectively; in the IUPAC system those are numbers are indicated with hydride numbers is the same in both systems.