H with nonmetal

   
 
What are they?  |  How are they named? If we know the formula  | If we know the name  |  Examples  |  Exercises
   

What are they?

    They are compounds formed by hydrogen and a nonmetal of the groups 13, 14 and 15.

How are they named?

    The name is the root of the nonmetal with the suffix "–ane". A Greek prefix that shows us the number of atoms of nonmetal. The number of hydrogens can go brackets. Also accepting their common names.

If we know the formula

    In the formula: We look at the element that is not hydrogen. We write the root of element followed by the suffix "–ane".

If we know the name

    In the name: The root of nonmetal tells us the element that is not hydrogen. The number of H will be 3 for elements of the grupo13 (group B), 4 for elements of the group 14 (group C), and 3 for elements of the group 15 (Group N). If the subscript the nonmetal is not 1 must know the structure of the compound, then it puts between brackets the number of hydrogens.

Examples

 

 

Systematic name

Common name

NH3  Azane  Ammonia
N2H4  Diazane  Hydrazine
PH3  Phosphane  Phosphane
P2H4  Diphosphane  Diphosphane
AsH3  Arsane  Arsane
SbH3  Stibane  Stibane
CH4  Methane  Methane
SiH4  Silane  
Si2H6  Disilane  
BH3  Borane  
B2H6  Diborane or diborane(6)  
B3H5 Triborane or triborane(5)  

Methane follows the rules of the organic nomenclature.

Exercises

In Formulae you have an exercise to write the names of these substances and to check your results. You also have the answer to the exercise.

In Names you have an exercise to write the formulae for these substances and to check your results. You have to introduce the formulae without subscripts, for example for water = H2O. You also have the answer to the exercise.

Formulae 1 Names 1 Formulae 2 Names 2

 


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