What is the hybridization of the central atom in BeI2? Hybridization = What are the approximate bond angles in this substance? Bond angles = ° B. What is the hybridization of the central atom in NO2Cl? Hybridization = What are the approximate bond angles in this substance? Bond angles = °
The Correct Answer and Explanation is:
. BeI2 (Beryllium Iodide)
- Hybridization of the central atom:
In BeI2, beryllium (Be) is the central atom, and it is bonded to two iodine (I) atoms. Beryllium has only two valence electrons and forms two bonds with iodine atoms. Since there are no lone pairs of electrons on the central beryllium atom, the molecule adopts a linear geometry. The hybridization of the central atom in BeI2 is sp. The two bonding regions around beryllium (the two Be-I bonds) correspond to two sp hybrid orbitals. This is typical for molecules with two regions of electron density. - Bond angles in BeI2:
The bond angles in a linear molecule are approximately 180°, as the two bonding pairs of electrons repel each other and align in a straight line.
B. NO2Cl (Nitryl Chloride)
- Hybridization of the central atom:
In NO2Cl, nitrogen (N) is the central atom, surrounded by two oxygen (O) atoms and one chlorine (Cl) atom. The nitrogen atom has a total of five valence electrons, with two bonding regions from the oxygens and one from the chlorine. Additionally, there is one lone pair of electrons on nitrogen. The molecule has three regions of electron density (two bonds and one lone pair), which results in a trigonal planar geometry. The central nitrogen in NO2Cl undergoes sp2 hybridization. The three regions of electron density form sp2 hybrid orbitals, with the lone pair occupying one of these orbitals and the other two involved in bonds with the oxygen and chlorine atoms. - Bond angles in NO2Cl:
The bond angles in a trigonal planar molecule are approximately 120°. However, because of the lone pair on nitrogen, the actual bond angles might be slightly less than 120°, as lone pairs tend to repel more strongly than bonding pairs.
Summary:
- BeI2:
- Hybridization = sp
- Bond angles = 180°
- NO2Cl:
- Hybridization = sp2
- Bond angles = approximately 120°
