Here is the Lewis structure for HBr and the requested information:
a. Name
Hydrogen Bromide (HBr)
b. Total Number of Valence Electrons
HBr has a total of 8 valence electrons. Hydrogen contributes 1 valence electron, and Bromine contributes 7 valence electrons.
c. Electron Pair Geometry
The electron pair geometry of HBr is linear. This is because there are only two atoms involved, and the electron pairs are arranged in a straight line.
d. Molecular Geometry
The molecular geometry of HBr is also linear. Since there are only two atoms, the molecule is straight.
e. Polarity
HBr is a polar molecule. Bromine is more electronegative than hydrogen, creating a dipole moment where the bromine end is slightly negative, and the hydrogen end is slightly positive.
Here is the Lewis structure for HBr:
H : Br
In this structure, the single bond between hydrogen and bromine is represented by a colon (:), and the lone pairs on bromine are not shown for simplicity.