Naming and Charges of Lead Compounds

The video tutorial explains how to name the compound PbF2. It begins by identifying Pb as lead, a transition metal, and F as fluorine, a non-metal. The process involves writing the name of the metal and modifying the non-metal's name by replacing 'ine' with 'ide', resulting in 'lead fluoride'. Since lead is a transition metal, its charge must be specified. Fluorine forms ions with a -1 charge, and with two fluoride ions, the total negative charge is -2. Therefore, lead must have a +2 charge, leading to the name 'Lead (II) Fluoride'. The video also covers how to deduce the formula from the name.

What type of metal is lead in the compound PbF2?

• Alkali metal

• Transition metal

• Alkaline earth metal

• Noble gas

What is the first step in naming the compound PbF2?

• Determine the number of atoms

• Write the name of the non-metal

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

• Identify the charge of the metal

How is the suffix of the non-metal changed when naming PbF2?

• Change 'ine' to 'ide'

• Change 'ine' to 'ate'

• Change 'ine' to 'ite'

• Change 'ine' to 'ous'

Why is it necessary to include the charge of lead in the name of PbF2?

• Because lead is a non-metal

• Because lead is a transition metal

• Because fluorine has multiple charges

• Because it is a polyatomic ion

What is the charge of the fluoride ion in PbF2?

• 2-

• 1-

• 2+

• 1+

What does the Roman numeral in 'Lead(II) fluoride' indicate?

• The total charge of the compound

• The number of lead atoms

• The charge of the lead ion

• The number of fluoride ions

How many fluoride ions are needed to balance the charge of lead in PbF2?

• Three

• Four

• Two

• One