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Hi there.
00:04
In this question, we want to predict the ion charge of metal ions formed from specific groups on the periodic table.
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So first of all, we want to talk about metals.
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Metals, when they form ions, they will lose valence electrons to form cations.
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And cations, which is the term for positive ions.
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So each of these metals are going to form positive ions because metals, lose electrons to form positive ions.
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So let's look at our first one here.
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First one is group 1a or group 1.
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So group 1a is here on the periodic table.
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Everything in group 1 has one valence electron.
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So any of the metals in that group, when they lose that one electron, they will form an ion with a one positive charge.
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So the ion charge will be one positive.
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For the things in group one.
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All right.
01:38
Next, we're asked about group two, which is right next to this.
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Group two or group 2a, as it's also known, all of the elements in this group have two valence electrons.
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So to form ions, they will lose those two valence electrons.
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So if they lose two electrons, they're going to form an ion with a charge of two positive.
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Okay, so far we have one positive.
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We have two positive.
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Let's go to group 3a...