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Hello.
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So today i'm going to help you with a question that was posted and it's called it and the question reads a binary ionic compound is known to contain a cation with 51 protons.
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So 51 protons and i'll be denoted with p and 48 electrons.
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So 48 e minus.
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So p plus means it's positive, e minus is negative.
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So then we're so let's just figure this one out.
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So if you look on the periodic table, it's labeled one all the way through 118.
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So those numbers, one means one proton.
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So we know that this is antimony, right? because there's 51 protons in antimony, and that's the only element on the whole periodic cable that has 51 protons.
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So it's sb.
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And since there's a 3, so it's 51 minus 48.
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And it has a positive three.
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So we know that this has a positive three charge.
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Okay.
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So this is the cat ion, aka the positively charged portion of this ionic compound...