The Lewis structure for CH3Br has the carbon in the center with four electrons around it and the three hydrogens and bromine each sharing a single electron with the carbon. The bromine has an additional three pairs of electrons surrounding it.Know More
Lewis structures show how atoms bond to each other to form a complete molecule, and they are useful for demonstrating bonding in basic molecules, such as bromomethane. In some cases, lines are used to indicate bonds, but dots are more common when dealing with basic compounds. In addition to bonding electrons, these diagrams also show nonbonding electrons, such as in the case of bromine in bromomethane. Bromine, in this instance, has three pairs of electrons that are not actively involved in the bonding between it and carbon.
In general, Lewis structures demonstrate that most atoms, with the exception of hydrogen, form molecules to get a total of eight electrons in their outer shells. However, these structures can also be used to hint at the overall shape of a molecule. In the case of bromomethane, the four atoms around the carbon must be arranged fairly evenly in a 3D space, so they form a tetrahedral structure. However, because bromine forms such a long (and therefore weaker) bond, the hydrogens have a little more space than in methane, resulting in a slightly distorted tetrahedral.Learn more about Atoms & Molecules
The Lewis structure of XeH4 consists of a single xenon atom at the center of the molecule, surrounded by four hydrogens. Each hydrogen has a full shell of two valence electrons, leaving a total remainder of 12 to attach to the xenon atom.Full Answer >
The Lewis structure of HCOOH places the carbon atom at the center, surrounded by a single bond to a carbon and an oxygen atom, with a double bond to the remaining oxygen group. The single-bonded oxygen has a single bond to a hydrogen atom. There are an additional four electrons around each oxygen atom to account for those not used in bonding and to satisfy the octet rule for oxygen.Full Answer >
The Lewis structure for boron tribromide is drawn with a B in the center with three lines connecting to three Brs, each of which contains three pairs of dots around it. The B is the symbol for the single boron atom, and the Brs are the symbol for the three bromine atoms in boron tribromide.Full Answer >
The Lewis structure for xenon trioxide, which is written with the chemical formula XeO3, has an Xe in the center with three sets of radiating double lines leading to three Os. The Xe is bordered by a pair of dots, and each O is bordered by two pairs of dots.Full Answer >