What is the molecular geometry for SH2?
1. Bent
2. Trigonal planar
3. Tetrahedral
4. Liner
bent
Another way of writing SH2 is H2S. Wouldn't you expect that to be similar to H2O?
The molecular geometry for SH2 is bent.
To determine the molecular geometry of SH2, we first need to know the Lewis structure of the molecule.
1. Start by calculating the total number of valence electrons in the molecule:
- Sulfur (S) has 6 valence electrons
- Each Hydrogen (H) atom has 1 valence electron
- Multiply the number of Hydrogen atoms by 2 since there are two Hydrogen atoms in SH2
So, the total number of valence electrons in SH2 is 6 + (2 * 1) = 8.
2. Next, use this information to draw the Lewis structure for SH2.
Sulfur (S) is the central atom, and each Hydrogen (H) atom will bond with Sulfur.
3. Connect all the atoms using single bonds, and make sure each atom has a full octet (except for Hydrogen, which only needs 2 electrons). Place any remaining electrons on the central atom.
Based on the Lewis structure, SH2 has 2 bonding pairs and 2 lone pairs of electrons on the central atom.
4. To determine the molecular geometry, consider the electron geometry and the arrangement of the bonded atoms.
In this case, the electron geometry is tetrahedral because there are four electron groups (two bonding pairs and two lone pairs) around the central atom.
However, the molecular geometry is bent because the lone pairs on the central atom repel the bonded pairs, causing the bonding pairs to arrange themselves in a bent shape.
So, the correct answer is 1. Bent.