energy in shells closer to the nucleus

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Tatiana 4B
Posts: 30
Joined: Fri Sep 28, 2018 12:28 am

energy in shells closer to the nucleus

Postby Tatiana 4B » Fri Oct 19, 2018 3:00 pm

Why are electrons closer to the nucleus lower in energy?

Shundeen Martinez 1D
Posts: 31
Joined: Fri Sep 28, 2018 12:18 am

Re: energy in shells closer to the nucleus

Postby Shundeen Martinez 1D » Fri Oct 19, 2018 3:36 pm

Since the electrons are closer to the nucleus, they are closer to a positive charge which then makes the energy level of the electron lower.

ThomasLai1D
Posts: 61
Joined: Fri Sep 28, 2018 12:17 am

Re: energy in shells closer to the nucleus

Postby ThomasLai1D » Fri Oct 19, 2018 3:37 pm

I think of it this way: An negatively charged electron farther from the nucleus must be of higher energy in order to resist the pull of the positively charged nucleus. Therefore, an electron closer to the nucleus is of lower energy.

Kayla Vo 1B
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: energy in shells closer to the nucleus

Postby Kayla Vo 1B » Fri Oct 19, 2018 3:46 pm

Another way to think of it is that a greater amount of energy is required to free an electron from the inner shell rather than an electron from the outer shell. Because of this, electrons in the outer shell have a higher (potential) energy compared to those in the inner shell.

Linyu Zeng 1H
Posts: 28
Joined: Fri Sep 28, 2018 12:19 am

Re: energy in shells closer to the nucleus

Postby Linyu Zeng 1H » Fri Oct 19, 2018 3:54 pm

I don't know if this is correct, but I explain it to myself in this way: The closer an electron is to the nucleus, the greater energy it needs to resist the positive charge of the nucleus. Because the energy of an electron is negative (-), so the greater the "absolute value" of its energy, the lower its energy is.


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