Consider an alternate universe in which the understanding of...

Consider an alternate universe in which the understanding of the atom and electrons are the same except that orbitals can hold up to 4 electrons. Answer the following questions for an atom with 23 electrons in this universe: 1. Which subshell holds the last electron? 2. What ion would this atom be most likely to form in an ionic compound? 3. What is the complete electron configuration?

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0:00 All right.

00:01 So when we talk about electron configurations, as we know them, we know that in an orbital, there can be up to two electrons.

00:11 And that rule governs the following.

00:13 So like if you have the first energy level only has an s sub -shell and that can have one orbital, so that's two electrons.

00:21 Then we move on to the second one.

00:22 And there's an s and it can have two electrons.

00:25 And there's, oops, p.

00:29 There's three orbitals with two electrons each.

00:31 So then we have two p6.

00:32 And we just keep.

00:32 Going like that.

00:34 So, you know, the number of electrons within each sub -level is determined by that restriction that there can be a max of two electrons in an orbital.

00:44 Now, consider an alternate universe where we can have four electrons per orbital instead of two, how would the electron configurations change? so everything else is the same.

00:58 Then the 1s can be 1s4, then we'd have 2s4, then we'd have 2p.

01:03 So it's 3.

01:04 Three orbitals, four electrons each, that's 12.

01:08 Basically, we're just doubling all the numbers.

01:11 So this would be 3s2...

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