Naming Compounds (Formula To Name)

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Naming Compounds (Formula To Name)

Singular Worded Elements

Diatomic elements always have a subscript of 2 eg. O2 = Oxygen

Monoatomic, its the element straight, they have full valence shells

If first element is not metal

Molecular Compounds

First element stays the same

If second element ends with a 1:

Start second element with prefix "Mono" and suffix "ide"

If second element ends with a 2:

Start second element with prefix "Di" and suffix "ide"

If second element ends with a 3:

Start second element with prefix "Tri" and suffix "ide"

If second element ends with a 4:

Start second element with prefix "Tetra" and suffix "ide"

If second element ends with a 5:

Start second element with prefix "Penta" and suffix "ide"

If second element ends with a 6:

Start second element with prefix "Se" and suffix "ide"

If second element ends with a 7:

Start second element with prefix "Hept" and suffix "ide"

If second element ends with a 8:

Start second element with prefix "Octa" and suffix "ide"

If second element ends with a 9:

Start second element with prefix "non" and suffix "ide"

Polyatomic Compounds (first element can't be a metal)

Monovalent

Second Element (Polyatomic)

Look for polyatomic compound on the polyatomic chart

If: the subscript does match the original polyatomic element

Keep it the same as no oxygens are getting lost/gained

If: the subscript does not match the original polyatomic element because there are too many oxygens/ too less oxygens

Add the necessary prefix, and suffix that is needed into the polyatomic compound's name e.g.

+1 oxygen pernitrate

root nitrate

-1 oxygen nitrite

-2 oxygens hyponitrite

First Element

Name stays the same

Multivalent

First element stays the same, except the charge, in which you need to swap the charges, and the write the proper change as a roman numeral infront of the first element

Acid (first element can't be a metal)

Molecular Acidic Compound (has to have an H at the start)

If: the acid contains oxygen in it, then it is a: Binary Acids

Acid Bases: Multivalent Metal + Hydroxide

Add "Hydro" to the start of acid, and replace the last few letters with "ric" or take the stem and put "ric" at the end of the name, and add acid at the end of the name

Oxyacids (Has to have 2 elements in it in it)

Take the polyatomic name and add a suffix at the end of it by replacing the last few letters (take the stem and replace the rest with the proper suffix based on how many oxygens it is losing / gaining)

1 Oxygen gain - "Per" prefix, ends with "ic"

1 Oxygen lost - Suffix is "ous"

2 oxygen lost - Suffix is "ous", prefix is "hypo"

If: First Element Metal

Then: Can't Be Acid

If metal can have multiple charges: Then: Ionic Multivalent Binary

First element metal

For second element, write the charge for the metal, as a roman numeral, (remember to cancel out the charges if they are the same, or simplify, but make sure the charge still matches the one that needs to be on the metal)

Monovalent Ionic Binary

Nonmental (second element)

Change to element's name

Metal (First element)

Metal stays the same