00:02
Hi there.
00:03
To answer this question, let's start off for a moment talking about an ionic compound.
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An ionic compound is composed of a cation, which is a positive ion, and an ion, which is a negative ion.
00:25
The cations and anions can be monoatomic, meaning ions formed from a single atom, or they can be polyatomic.
00:51
And a polyatomic ion refers to two or more non -metals that are covalently bonded, and as a unit, they have a charge.
01:20
They have gained or lost electrons.
01:28
Okay, so with this in mind, we are ready to answer this question.
01:34
Question first wants us to write an example of a potassium compound that contains both ionic and covalent bonds.
01:43
So that's going to mean potassium plus a polyatomic anion.
01:59
And i know i need an anion because potassium is a metal.
02:03
So metals form cat ions.
02:05
So potassium is going to be our positive ion.
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And the polyatomic anion is going to be our negative ion.
02:16
All right.
02:16
So let's write one of these.
02:18
So potassium is k.
02:21
It just has one valence electron.
02:23
So it forms an ion with a single positive charge.
02:27
I'm going to go ahead and put this with nitrate...