Oxidation Numbers and States

The video tutorial explains how to determine the oxidation numbers for chlorine in ClF4+. It starts by discussing the rules for oxidation numbers in ions, emphasizing that they sum up to the ion's charge. The tutorial highlights that chlorine, typically -1, can vary when bonded to more electronegative elements like fluorine. An equation is set up to find chlorine's oxidation number, resulting in +5. The video concludes by verifying the calculation and summarizing the oxidation numbers for ClF4+.

What is the total oxidation number for all atoms in an ion?

• It equals the charge of the ion.

• It is always zero.

• It is always negative.

• It is always positive.

What is the typical oxidation state of chlorine in group 17?

• +5

• -1

• 0

• +1

When chlorine is bonded to fluorine, what happens to its oxidation state?

• It is determined by the electronegativity of fluorine.

• It can vary depending on the compound.

• It becomes +1.

• It remains -1.

What is the oxidation number of fluorine in compounds?

• +2

• +1

• 0

• -1

How do you represent the unknown oxidation number of chlorine in the equation?

• As y

• As z

• As x

• As a

What is the oxidation number of chlorine in ClF4+?

• 0

• +5

• -1

• +3

What is the sum of the oxidation numbers of the four fluorine atoms in ClF4+?

• -1

• 0

• +4

• -4

What is the final charge of the ClF4+ ion after calculating the oxidation numbers?

• +1

• 0

• +2

• -1