Central Atom

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thanh24mai
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Joined: Thu Jul 25, 2019 12:17 am

Central Atom

Postby thanh24mai » Sun Oct 27, 2019 3:12 pm

How do you know which to use as the central atom?

Charisse Vu 1H
Posts: 101
Joined: Thu Jul 25, 2019 12:17 am

Re: Central Atom

Postby Charisse Vu 1H » Sun Oct 27, 2019 3:13 pm

The atom with the lowest ionization energy is commonly used as the central atom when drawing lewis structures! Dr. Lavelle talked about this briefly in lecture :)

Mansi_1D
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Joined: Fri Aug 02, 2019 12:15 am

Re: Central Atom

Postby Mansi_1D » Sun Oct 27, 2019 3:14 pm

The atom that is more electronegative is in the middle because it's pulling more electrons to itself.

rohun2H
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Joined: Wed Sep 18, 2019 12:19 am

Re: Central Atom

Postby rohun2H » Sun Oct 27, 2019 5:39 pm

Typically you choose the atom with the lowest ionization energy as the central atom.

Elizabeth Harty 1A
Posts: 125
Joined: Sat Jul 20, 2019 12:16 am

Re: Central Atom

Postby Elizabeth Harty 1A » Sun Oct 27, 2019 5:40 pm

Also if you have something which has one of one species and 4 of another it is almost always the with which is less frequent (if you think about number of bonds and octet rule).

Michael Nguyen 1E
Posts: 120
Joined: Sat Aug 17, 2019 12:17 am

Re: Central Atom

Postby Michael Nguyen 1E » Sun Oct 27, 2019 5:45 pm

The central atom of a molecule is usually an atom of the element with the lowest ionization energy.

Jared_Yuge
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

Re: Central Atom

Postby Jared_Yuge » Sun Oct 27, 2019 5:54 pm

The atom with lowest ionization energy because they pull other atoms toward it with its electrons that it shares

Amanda Mei 1B
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Joined: Sat Aug 24, 2019 12:16 am

Re: Central Atom

Postby Amanda Mei 1B » Sun Oct 27, 2019 5:55 pm

It's usually the atom that creates the most bonds (has fewest valence electrons).

Qilan Li 4I
Posts: 54
Joined: Mon Jun 17, 2019 7:23 am

Re: Central Atom

Postby Qilan Li 4I » Sun Oct 27, 2019 6:01 pm

The atom with the lowest ionization energy is usually the central atom because it is able to create the most bonds. You can also look for the atom with the lowest electron affinity since they share the same trend.

Lauren Stack 1C
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Joined: Sat Aug 17, 2019 12:18 am

Re: Central Atom

Postby Lauren Stack 1C » Sun Oct 27, 2019 8:01 pm

Typically the atom with the lowest electronegativity is the central atom. The only exception to the rule is Hydrogen.

J Medina 2I
Posts: 102
Joined: Wed Sep 25, 2019 12:17 am

Re: Central Atom

Postby J Medina 2I » Sun Oct 27, 2019 8:09 pm

Atom ionization energy levels generally follow a trend of decreasing as you move left across and down the periodic table.

Abigail_Hagen2G
Posts: 107
Joined: Fri Aug 09, 2019 12:17 am

Re: Central Atom

Postby Abigail_Hagen2G » Sun Oct 27, 2019 8:46 pm

Just put the ones that are more left and more down as the central atom, as they have lower ionization energies.

Ethan Low 1L
Posts: 24
Joined: Wed Sep 18, 2019 12:15 am

Re: Central Atom

Postby Ethan Low 1L » Mon Oct 28, 2019 12:45 am

The element with the lowest ionization energy is normally used as the central atom

Jacob Motawakel
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Re: Central Atom

Postby Jacob Motawakel » Mon Oct 28, 2019 1:02 am

The central atom is the atom with the lowest ionization energy.


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