Oxidation Numbers and Sodium Compounds

The video tutorial explains how to determine the oxidation numbers for sodium fluoride (NaF). It begins by stating that NaF is a neutral compound, meaning the sum of its oxidation numbers is zero. Sodium, a group 1 element, has an oxidation number of +1, while fluorine is always -1. The video confirms that these values add up to zero, verifying the correctness of the calculation. The tutorial concludes with a summary of the oxidation numbers for each element in NaF.

What is the total sum of oxidation numbers in a neutral compound like NaF?

• 1

• 0

• -1

• 2

Which group in the periodic table does sodium belong to?

• Group 18

• Group 17

• Group 2

• Group 1

What is the oxidation number of sodium in NaF?

• -1

• 0

• +1

• +2

What is the oxidation number of fluorine in NaF?

• -2

• -1

• 0

• +1

How do the oxidation numbers of sodium and fluorine in NaF confirm the compound's neutrality?

• They both are positive.

• They add up to zero.

• They both are negative.

• They add up to one.