Transition Metals and Ionic Compounds

This video tutorial covers the naming of compounds containing transition metals, focusing on the use of Roman numerals to indicate the charge of the metal. It provides five examples, including chromium bromide, gold sulfide, cobalt nitride, zinc oxide, and vanadium carbonate, explaining the process of determining the charge of the metal and naming the compound accordingly. The tutorial also highlights exceptions for metals like zinc and silver, which have fixed charges.

What is a common feature of names for compounds containing transition metals?

• They start with the letter 'T'.

• They are named after the discoverer.

• They always end with '-ide'.

• They include Roman numerals.

Which ion does bromine form in ionic compounds?

• Br+

• Br-

• Br3-

• Br2+

What is the charge on chromium in the compound CrBr2?

• 3+

• 1+

• 2+

• 6+

How many types of ions can gold form?

• One

• Two

• Three

• Four

What is the name of the compound Au2S?

• Gold Sulfide

• Gold(II) Sulfide

• Gold(I) Sulfide

• Gold(III) Sulfide

What is the charge on cobalt in the compound Co3N2?

• 2+

• 1+

• 3+

• 4+

What is the name of the compound Co3N2?

• Cobalt(I) Nitride

• Cobalt(II) Nitride

• Cobalt(III) Nitride

• Cobalt Nitride

Which transition metal always forms a 2+ ion?

• Silver

• Gold

• Copper

• Zinc

What is the charge on the polyatomic ion carbonate (CO3)?

• 2-

• 1-

• 3-

• 4-

What is the Roman numeral for the charge on vanadium in V(CO3)2?

• IV

• III

• II

• V