Naming Compounds with Transition Metals

The video tutorial explains how to name the compound CoBr3. It starts by identifying cobalt as a transition metal and bromine as a nonmetal. The process involves writing the names as they appear on the periodic table, changing the ending of bromine to 'ide', and determining the charge of cobalt due to its transition metal status. The final name is Cobalt(III) Bromide, with the Roman numeral indicating the charge of the cobalt ion.

What is the first step in naming the compound CoBr3?

• Determine the number of bromide ions

• Write the name of the nonmetal

• Identify the charge of cobalt

• Write the name of the metal as it appears on the periodic table

When naming a compound with a transition metal, what must be included in the name?

• The atomic number of the metal

• The charge of the metal in Roman numerals

• The number of nonmetal atoms

• The group number of the metal

What is the correct ending for the nonmetal bromine when naming CoBr3?

• ine

• ium

• ide

• ate

How do you determine the charge of cobalt in CoBr3?

• By the total mass of the compound

• By the position of cobalt in the periodic table

• By the charge of bromide ions

• By the number of cobalt atoms

What is the complete name for CoBr3?

• Cobalt Tribromide

• Cobalt Bromide

• Cobalt(II) Bromide

• Cobalt(III) Bromide

Why is the Roman numeral III used in the name Cobalt(III) Bromide?

• It indicates the number of bromine atoms

• It represents the charge of cobalt

• It shows the atomic number of cobalt

• It denotes the group number of bromine