Which one of the statements about electrons and atoms is now...

Which one of the statements about electrons and atoms is now considered INCORRECT? a. In each energy level above n=1, there are multiple regions of space an electron can occupy. b. De Broglie predicted that electrons could have wave properties. c. Two electrons can be paired in the same orbital as long as they have opposite spins. d. Electrons have well-defined mass and charge, but their exact position is uncertain. e. Each energy level corresponds to a particle orbit of the electron.

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00:02 Hi there.

00:03 This question is about atoms and the electrons in atoms.

00:08 And we want to know which statement is incorrect.

00:13 So we are looking for which one is incorrect.

00:21 All right.

00:22 So let's look at each of these in order here and see if we can determine which one that is.

00:27 Letter a says in each energy level above n equals one, there are multiple regions of space and electron can occupy.

00:34 And that is true.

00:35 As soon as we get above n equals one, there are multiple sub -levels.

00:39 In energy level two, there are two sub -levels, the s and the p.

00:43 In energy level three, there's s, p, and d, and so forth.

00:48 So there are multiple regions, those sub -levels where electrons can be found.

00:54 Letter b says debrogly predicted that electrons could have wave properties.

00:58 That is true.

00:59 It's called the duality of electrons, where they can act or where they have properties of both a particle and wave properties.

01:09 So that one is true.

01:12 Letter c, two electrons can be paired in the same orbital as long as they have opposite spins.

01:17 Yes, this is pauley's exclusion principle, and it is still true today, that each orbital can have two electrons, but they have to have opposite spins...

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