Binary Compounds of Metals with Fixed Charges Given Formula, Write the Name A binary compound is one made of two different elements. There can be one of each element such as in NaCl or KF. There can also be several of each element such as Na2O or AlBr3. Please remember that all elements involved in this lesson have ONLY ONE charge. That includes BOTH the cation AND the anion involved in the formula. Points to remember about naming a compound from its formula The order for names in a binary compound is first the cation, then the anion. Use the name of cation with a fixed oxidation state directly from the periodic table. The name of the anion will be made from the root of the element's name plus the suffix "-ide." Example 1: Write the name of the following formula: NaCl Step #1 - Look at first element and name it. Result of this step = sodium. Step #2 - Look at second element. Use root of its full name ( which is chlor-) plus the ending "-ide." Result of this step = chloride. Answer: Sodium Chloride Example 2: Write the name of the following formula: MgBr2 Step #1 - Look at first element and name it. Result of this step = magnesium. Step #2 - Look at second element. Use root of its full name ( which is brom-) plus the ending "-ide." Result of this step = bromide. Note the presence of the subscript does not play a role in this name. Answer: Magnesium Bromide
Binary Compounds of Metals with Fixed Charges Given Formula, Write the Name A binary compound is one made of two different elements. There can be one of each element such as in NaCl or KF. There can also be several of each element such as Na2O or AlBr3. Please remember that all elements involved in this lesson have ONLY ONE charge. That includes BOTH the cation AND the anion involved in the formula. Points to remember about naming a compound from its formula The order for names in a binary compound is first the cation, then the anion. Use the name of cation with a fixed oxidation state directly from the periodic table. The name of the anion will be made from the root of the element's name plus the suffix "-ide." Example 1: Write the name of the following formula: NaCl Step #1 - Look at first element and name it. Result of this step = sodium. Step #2 - Look at second element. Use root of its full name ( which is chlor-) plus the ending "-ide." Result of this step = chloride. Answer: Sodium Chloride Example 2: Write the name of the following formula: MgBr2 Step #1 - Look at first element and name it. Result of this step = magnesium. Step #2 - Look at second element. Use root of its full name ( which is brom-) plus the ending "-ide." Result of this step = bromide. Note the presence of the subscript does not play a role in this name. Answer: Magnesium Bromide
binary_compounds_of_metals_with_fixed_charges.docx