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The central atom in a Lewis structure is usually the least electronegative atom.
EDIT:
If an atom occurs only once, this atom is most likely to be the central atom (exception is hydrogen, as it can make only 1 bond [1 electron necessary to reach a noble gas electron configuration]). The atom that can form the greatest number of bonds (has the least number of valence electrons) or is the least electronegative (least likely to attract atoms).
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoIt is usually the the one with the highest valence, the one with the lowest electronegativity, or, for organic molecules, the carbon atom.
Wiki User
∙ 8y agoIt is where all the pairs of electrons are centered around.
Wiki User
∙ 12y agoThe least-electronegative atom is central (except for hydrogen, which is never central).
Wiki User
∙ 11y agoUsually some nonmetal, but if a compound of oxygen with another nonmetalit will be the other nonmetal, not oxygen.
Wiki User
∙ 9y agoIn a Lewis structure the least electronegative atom is usually the central atom
Wiki User
∙ 11y agowhy do you even care
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What is the central atom in the Lewis dot structure of nitryl chloride ClNO2?
nitrogen
How many lone pairs does SF6 have on central atom?
Every pair of electrons on the central atom (S) of the Lewis structure of SF6 is shared by an F atom, so therefore there are no lone pairs on the central atom.
In the best Lewis structure for the fulminate ion cno- what is the formal charge on the central nitrogen atom?
+1
How many valence electrons in the Lewis Structure for HCO3 1?
The central atom of this ion is the C atom and it has 8 valence electrons.
What is the Lewis structure of an atom?
There is none because there are no bonds in an atom.
What is the central atom in the Lewis dot structure of nitryl chloride ClNO2?
nitrogen
When drawing a Lewis structure the central atom is generally what type of atom when dealing with electronegative?
D. least electronegative atom
How many lone pairs does SF6 have on central atom?
Every pair of electrons on the central atom (S) of the Lewis structure of SF6 is shared by an F atom, so therefore there are no lone pairs on the central atom.
In the best Lewis structure for the fulminate ion cno- what is the formal charge on the central nitrogen atom?
+1
How many valence electrons in the Lewis Structure for HCO3 1?
The central atom of this ion is the C atom and it has 8 valence electrons.
What is the Lewis structure of an atom?
There is none because there are no bonds in an atom.
What is the Lewis Dot Structure IBr4?
I is the central atom single bonded to the 4 Br atoms. I also has 2 lone pairs of electrons. It may also be written without showing the lone pairs on any of the electrons, but with a negative charge on the I atom instead (that's how it was on my homework).
Why is Hydrogen and Fluorine cannot be central atoms in Lewis dot structurs?
To be the central atom in a compound, the atom must be able to simultaneously bond to at least two other atoms. He, F, and H cannot serve as central atoms in a Lewis structure
What is the concept of the Lewis model of the atom?
The Lewis structure of an atom gives a clear illustration of the valence electrons.
What is the hybridization of the central sulfur atom in SF4?
It should be sp3d. first draw the Lewis structure. then you can see the central S atom has 4 bonding pair and 1 lone pair. then draw molecular orbital. Distribute electron according the bonding and lone pair. the paired electron represent lone pair in Lewis structure. and the other unpaired electron distribute in the molecular orbital represent the number of bonding pair in Lewis structure
What is the Lewis Structure of CH3COH?
The Lewis dot structure for CH3OH starts with a central C atom. Three H atoms are single bonded to the carbon atom, and an OH group is also bonded to the C atom with a single C-O bond.
The correct Lewis structure for the oxygen atom has?
The correct Lewis Structure for the oxygen atom will be an 'O' with two dots above and below, with one dot on the left and on the right sides.
