Central Atom Question

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noelle_lipschutz_3F
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Central Atom Question

Postby noelle_lipschutz_3F » Fri Nov 20, 2020 5:30 pm

I am working on the following problem: Draw the Lewis Structure of NHF2. N is the central atom in this structure, but will H ever be a central atom in a molecule?

Gillian Gabrielsen2F
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Re: Central Atom Question

Postby Gillian Gabrielsen2F » Fri Nov 20, 2020 5:38 pm

H will never be the central atom because Hydrogen can only form one bond (it only has one unpaired electron)

Evelyn Silva 3J
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Re: Central Atom Question

Postby Evelyn Silva 3J » Fri Nov 20, 2020 5:43 pm

Hydrogen cannot be the central atom because they only like to form one bond (its an exception to the octet rule). When drawing Lewis structures they are usually added at the end.

Sejal Parsi 3K
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Re: Central Atom Question

Postby Sejal Parsi 3K » Sat Nov 21, 2020 4:39 am

Because Hydrogen only likes to form one bond, it can’t be the central atom. They are normally added to the end of Lewis structures because of this.

Veeda Khan 2E
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Re: Central Atom Question

Postby Veeda Khan 2E » Sat Nov 21, 2020 7:22 am

As said above, H can't be a central atom since it can only make one bond. Central atoms have to make at least two bonds to be central.

905409193
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Re: Central Atom Question

Postby 905409193 » Sat Nov 21, 2020 8:33 am

In order for covalent bonding to occur, the central atom must have enough available electrons to form at least two bonds. Hydrogen atoms have only one electron and can form only one bond.

Ava Nickman
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Re: Central Atom Question

Postby Ava Nickman » Sat Nov 21, 2020 8:35 am

like everyone said H can only bond once and cannot have an expanded octet like nitrogen so it will never be a central atom

Kevin Pilcher 3J
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Re: Central Atom Question

Postby Kevin Pilcher 3J » Sat Nov 21, 2020 5:44 pm

Hydrogen can never be the central atom in a molecule because it simply has too few electrons. Since it only has one it will forever be the bonding atom and not the central atom.

Justin Lin 1B
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Re: Central Atom Question

Postby Justin Lin 1B » Sat Nov 21, 2020 6:01 pm

Hydrogen can only form 1 bond so it wouldn't be favorable to have it as the central atom.

Rachel Kho Disc 2G
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Re: Central Atom Question

Postby Rachel Kho Disc 2G » Sat Nov 21, 2020 9:18 pm

H will never be the central atom because as others stated before it can only form one bond, and additionally it's useful to put whatever atom has the lowest ionization energy as the central atom (this tactic doesn't work all the time but it is usually a good starting point).

Serena Song 1A
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Re: Central Atom Question

Postby Serena Song 1A » Sat Nov 21, 2020 9:56 pm

Since H can only form one single bond, it's never the central atom. As a rule of thumb, the element with the lowest ionization energy is often the central atom.

Gustavo_Chavez_1K
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Re: Central Atom Question

Postby Gustavo_Chavez_1K » Sun Nov 22, 2020 12:21 pm

H could never be a central atom as it only has one valence electron, meaning that it could only form one bond. Also, central atoms in Lewis structures tend to be those with the lowest ionization energy so keep that in mind when making these structures!

Brandon Gruender 3F
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Re: Central Atom Question

Postby Brandon Gruender 3F » Sun Nov 22, 2020 12:41 pm

H will never be the central atom because it is only allowed to form 1 bond to fill its octet.

Talia Dini - 3I
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Re: Central Atom Question

Postby Talia Dini - 3I » Sun Nov 22, 2020 6:49 pm

Hi! Yes, as Dr. Lavelle mentioned in one of his lectures, H can never be a central atom when drawing a lewis structure.

Daniela_Martinez_3B
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Re: Central Atom Question

Postby Daniela_Martinez_3B » Sun Nov 22, 2020 7:11 pm

Hydrogen will never be a central atom because it never forms more than one bond!

Nayra Gharpetian 3F
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Re: Central Atom Question

Postby Nayra Gharpetian 3F » Sun Nov 22, 2020 7:12 pm

As Dr. Lavelle has mentioned in lecture, H can never be the central atom because it can only have 1 bond

Javier Perez M 1H
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Re: Central Atom Question

Postby Javier Perez M 1H » Sun Nov 22, 2020 7:36 pm

Hydrogen is just one of the very few elements that will never be your central atom. Every other element can be a central atom for the most part as long as they are the one with the least electronegativity in the molecule.

Aria Movassaghi 1A
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Re: Central Atom Question

Postby Aria Movassaghi 1A » Sun Nov 22, 2020 8:37 pm

No, H can never be the central atom.

Daniela Santana 2L
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Joined: Wed Sep 30, 2020 9:59 pm

Re: Central Atom Question

Postby Daniela Santana 2L » Sun Nov 22, 2020 9:15 pm

Hi! H can never be a central atom because it can only bond with one other atom. Hope this helped!

Dane_Beasley_1E
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Re: Central Atom Question

Postby Dane_Beasley_1E » Sun Nov 22, 2020 9:50 pm

H can not be a central atom because it can only form one chemical bond.

Lauren Mungo 1K
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Re: Central Atom Question

Postby Lauren Mungo 1K » Sun Nov 22, 2020 9:57 pm

H can never be the central atom as it is only able to make one bond


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