6. Chemical Quantities & Aqueous Reactions
Calculate Oxidation Numbers
Video duration:
1mRelated Videos
Related Practice
Skip to main content
So here it says, which of the following elements would have the most positive oxidation number based on its ionic form? Now, if you've watched my videos on periodic table charges, you'll remember that the periodic table has some key things we need to remember when it comes to particular elements and their charges. For example, silver. Silver is a transition metal. Most transition metals have multiple charges. Silver on the other hand does not. Remember, silver is always plus 1 for its oxidation number. Scandium. Scandium is also a transition metal. It's in group 3b, remember? So group 3b elements. They tend to have a charge of plus 3. Next we have sodium. It's in group 1 a, so its charge is plus 1. And then sulfur is in group 6 a, so its charge is minus 2. We're looking for the most positive oxidation number, and that would have to mean that option b is the correct choice. It has the biggest positive value of plus 3. Remember, if you haven't gotten a chance to look at my periodic table videos on charges, and you just wanna go and take a look at the different types of elements and their charges, I highly suggest that you go back and take a look. Because when it comes to charges of elements, it's gonna form a foundation for a lot of later topics we're going to cover in chemistry 1 and chemistry 2. Alright. So just remember, in this question the answer would have to be option b, it has the most positive charge and therefore the most positive oxidation.
02:42
