Sapling Question (excited-state, ground-state)

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Nina Fukui 2J
Posts: 70
Joined: Wed Sep 30, 2020 9:43 pm

Sapling Question (excited-state, ground-state)

Postby Nina Fukui 2J » Sun Nov 01, 2020 9:06 pm

Hi everyone,
I'm confused about how to identify the element. How do I do this?

Screen Shot 2020-11-02 at 14.04.43.png

Zainab Jamali 1H
Posts: 73
Joined: Wed Sep 30, 2020 9:54 pm

Re: Sapling Question (excited-state, ground-state)

Postby Zainab Jamali 1H » Sun Nov 01, 2020 9:12 pm

For this question, you can start by finding the total number of electrons. That number is equivalent to the atomic number of the atom so, using the periodic table, you can determine what element it is.

Andreas Krumbein 1L
Posts: 59
Joined: Wed Sep 30, 2020 10:00 pm

Re: Sapling Question (excited-state, ground-state)

Postby Andreas Krumbein 1L » Sun Nov 01, 2020 9:13 pm

The 2p orbital in that configuration has no electrons, since one of the electrons has been excited up to the 3s orbital. So if you move that electron back down to the 2p orbital the ground state configuration is 1s2 2s2 2p1. Hope this helps.

jessicaosuna_1F
Posts: 71
Joined: Wed Sep 30, 2020 9:51 pm

Re: Sapling Question (excited-state, ground-state)

Postby jessicaosuna_1F » Sun Nov 01, 2020 9:13 pm

To add onto that, once you have identified the atom, you just write out the regular electron configuration.

Savana Maxfield 3F
Posts: 114
Joined: Wed Sep 30, 2020 10:00 pm

Re: Sapling Question (excited-state, ground-state)

Postby Savana Maxfield 3F » Sun Nov 01, 2020 9:27 pm

I agree with everything said above! And just for reference: an electron configuration in which the valence electron is in a higher energy orbital, the element is in the excited state. To return back to ground state, identify the number of electrons and fill each orbital accordingly (in such a way that each orbital contains the maximum amount of electrons.)


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