Choosing the central atom

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RasikaObla_4I
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Choosing the central atom

Postby RasikaObla_4I » Sun Oct 27, 2019 7:55 pm

Is there a rule for choosing the central atom? And are there some atoms that will always be the central atom?

saigorijavolu2k
Posts: 108
Joined: Sat Sep 28, 2019 12:15 am

Re: Choosing the central atom

Postby saigorijavolu2k » Sun Oct 27, 2019 7:56 pm

it is usually the least electronegative atom. Carbon is good

Kevin Antony 2B
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Joined: Sat Sep 07, 2019 12:16 am

Re: Choosing the central atom

Postby Kevin Antony 2B » Sun Oct 27, 2019 7:58 pm

When choosing the central atom you look for which atom has the lowest ionization energy to be the central atom.

jvera4b
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Joined: Wed Sep 11, 2019 12:17 am

Re: Choosing the central atom

Postby jvera4b » Sun Oct 27, 2019 7:58 pm

The central atom is the one with the lowest ionization energy(decrese down a group and increase across a period).

Shimei_2F
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Joined: Fri Aug 09, 2019 12:17 am

Re: Choosing the central atom

Postby Shimei_2F » Sun Oct 27, 2019 8:00 pm

Dr. Lavelle said during lecture to use the least electronegative atom as the central atom. In the case that carbon is present in the ion, it's usually the central atom.

Natalie C 1K
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Re: Choosing the central atom

Postby Natalie C 1K » Sun Oct 27, 2019 8:52 pm

the atom that has the lowest ionization energy is the central atom! ionization energy decreases down a group and increases across a period

Clarice Chui 2C
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Re: Choosing the central atom

Postby Clarice Chui 2C » Sun Oct 27, 2019 9:23 pm

He also mentioned that hydrogen will never be the central atom. Just something to remember!

Nikki Razal 1L
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Re: Choosing the central atom

Postby Nikki Razal 1L » Sun Oct 27, 2019 9:26 pm

The central atom is the element with the lowest ionization energy. Usually, it is the first element in a compound, and when it is placed in the middle, you are able to draw atoms symmetrically around it.

Shail Avasthi 2C
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Re: Choosing the central atom

Postby Shail Avasthi 2C » Sun Oct 27, 2019 10:17 pm

The atom with the lowest ionization energy should be the central atom.

Kendra Barreras 3E
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Re: Choosing the central atom

Postby Kendra Barreras 3E » Sun Oct 27, 2019 10:19 pm

It typically is the one with the lowest ionization energy.

SimranSangha4I
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Re: Choosing the central atom

Postby SimranSangha4I » Sun Oct 27, 2019 10:20 pm

When picking a central atom, it's most common to pick the one with the lowest ionization energy.

Jacob Villar 2C
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Re: Choosing the central atom

Postby Jacob Villar 2C » Sun Oct 27, 2019 10:20 pm

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

Abraham De Luna
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Re: Choosing the central atom

Postby Abraham De Luna » Sun Oct 27, 2019 10:27 pm

You choose the central atom by picking the atom that has the lowest ionization energy.

Shail Avasthi 2C
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Joined: Fri Aug 30, 2019 12:17 am

Re: Choosing the central atom

Postby Shail Avasthi 2C » Sun Oct 27, 2019 10:27 pm

The atom with the lowest ionization energy should be the central atom. When a molecule contains carbon, it is usually central in some way. Hydrogen should never be chosen as the central atom.

jmtz1I
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Joined: Wed Sep 18, 2019 12:15 am

Re: Choosing the central atom

Postby jmtz1I » Sun Oct 27, 2019 11:39 pm

From what Lavelle said, you should pick the atom with the lowest ionization energy to be the central atom.

Lauren Sanchez 3D
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Joined: Sat Aug 24, 2019 12:17 am

Re: Choosing the central atom

Postby Lauren Sanchez 3D » Sun Oct 27, 2019 11:44 pm

Just to clarify, what are the periodic trends for ionization energy?

Ashley Fang 2G
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Joined: Fri Aug 30, 2019 12:17 am

Re: Choosing the central atom

Postby Ashley Fang 2G » Mon Oct 28, 2019 12:27 am

Ionization energy increases as you go up a column and to the right of a period. It's the energy required to remove an electron.


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