Energy of Electron

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haileyramsey-1c
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Joined: Thu Jul 25, 2019 12:18 am

Energy of Electron

Postby haileyramsey-1c » Wed Oct 09, 2019 3:24 pm

What does Dr. Lavelle mean when he says "the energy of an electron is quantized"?

Vanessa Chuang 4F
Posts: 51
Joined: Sat Aug 24, 2019 12:18 am

Re: Energy of Electron

Postby Vanessa Chuang 4F » Wed Oct 09, 2019 3:31 pm

Unlike a lot of things we see in daily life (ex: a continuous stream of water), electrons only exist on specific energy levels (n=1, n=2, etc) and nothing else. This means that they can't be found anywhere in between these values. Being quantized means that the amount of energy absorbed or released can only exist in discrete amounts. So when electrons are changing energy levels, they can only absorb or emit the exact amount of energy needed to take them to another level.

Jacob Puchalski 1G
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Joined: Fri Aug 09, 2019 12:16 am

Re: Energy of Electron

Postby Jacob Puchalski 1G » Wed Oct 09, 2019 3:32 pm

He means that each electron can only hold specific amounts of energy. That's why the energy levels are n=1, n=2, n=3,... instead of any random number like n=1.74.

Katie Bart 1I
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Joined: Sat Aug 24, 2019 12:16 am

Re: Energy of Electron

Postby Katie Bart 1I » Wed Oct 09, 2019 4:42 pm

Is this also what "quantum theory" means? Like it refers to the discrete states in which electrons exist?

805307623
Posts: 99
Joined: Fri Aug 09, 2019 12:17 am

Re: Energy of Electron

Postby 805307623 » Thu Oct 10, 2019 3:50 pm

I believe that quantum mechanics(and quantum theory) is a fundamental theory in describing the smallest scales of atoms/subatomic particles.

Fatemah Yacoub 1F
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Joined: Thu Jul 11, 2019 12:16 am

Re: Energy of Electron

Postby Fatemah Yacoub 1F » Thu Oct 10, 2019 4:09 pm

By the energy of an electron is quantized he is saying that the energy levels of an electron are discrete. So n must be a whole number energy level.

005206171
Posts: 107
Joined: Wed Sep 18, 2019 12:20 am

Re: Energy of Electron

Postby 005206171 » Thu Oct 10, 2019 8:31 pm

when you say energy is quantized, this means energy can only be absorbed or emitted in specific (discrete) amounts. This means at some point, you can't divide energy into smaller amounts.

Bradley Whitworth 4B
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Joined: Sat Jul 20, 2019 12:17 am

Re: Energy of Electron

Postby Bradley Whitworth 4B » Thu Oct 10, 2019 10:28 pm

All it means to be quantized is that the electrons can only have specific values for their energies; in other words, its values are discrete and not continuous. For example, its energy can only be 1,2,3,4... (again just as an example to illustrate the point) and cannot be 1.387 or 4.821 because they are not discrete values they're continuous. The idea of electrons being quantized is part of the reason why the Bohr model of atoms is still taught in schools because even though it is an oversimplified model of an atom, it was an important development because it established the idea that electrons are quantized.

Shrayes Raman
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Joined: Sat Jul 20, 2019 12:15 am

Re: Energy of Electron

Postby Shrayes Raman » Fri Oct 11, 2019 8:37 am

At the quantum level, the an electron can only occupy a certain energy level. This means that a specific amount of energy, i.e. a quantized amount is required to raise an electrons energy. This energy differs across the elements.

Michelle N - 2C
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Joined: Wed Sep 18, 2019 12:19 am

Re: Energy of Electron

Postby Michelle N - 2C » Fri Oct 11, 2019 11:28 am

I think it meant that the values of the energy are only discrete (not decimals/fractions) and that a certain amount is needed to bring them up/down different energy levels.

Rhea Shah 2F
Posts: 97
Joined: Thu Jul 25, 2019 12:17 am

Re: Energy of Electron

Postby Rhea Shah 2F » Sat Oct 12, 2019 5:09 pm

When he says this, he means that the electron can occupy only specific levels of energy (n=1,2,3,4...). The electron can never be in between such levels of energy, but rather, must occupy a discrete quantum level of energy. When an electron loses energy, it drops to a lower quantum level and the lost energy is given off as a photon.


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