Draw the Lewis structure for BeF,, including What is the molecular shape of BeF,? lone pairs. tetrahedral Select Draw Rings More Erase linear Be O trigonal pyramidal O trigonal planar bent LL
Formal Charges
Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Even if some molecules are neutral, the atoms within that molecule need not be neutral atoms.
Polarity Of Water
In simple chemical terms, polarity refers to the separation of charges in a chemical species leading into formation of two polar ends which are positively charged end and negatively charged end. Polarity in any molecule occurs due to the differences in the electronegativities of the bonded atoms. Water, as we all know has two hydrogen atoms bonded to an oxygen atom. As oxygen is more electronegative than hydrogen thus, there exists polarity in the bonds which is why water is known as a polar solvent.
Valence Bond Theory Vbt
Valence bond theory (VBT) in simple terms explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. It gives a quantum mechanical approach to the formation of covalent bonds with the help of wavefunctions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
![### Drawing the Lewis Structure of BeF₂
#### Instructions:
1. **Draw the Lewis structure for BeF₂, including lone pairs.**
You will need to:
- Use the drawing tools provided.
- Place the element symbols \( \text{Be} \) (Beryllium) and \( \text{F} \) (Fluorine) accordingly.
- Draw bonds to represent electron pairs shared between atoms.
- Indicate lone pairs on fluorine atoms.
**Available Tools:**
- **Select Tool**
- **Draw Tool**: This includes single, double, and triple bond indicators.
- **Rings Tool**
- **More Tool**
- **Erase Tool**
- Elements: Be, F
Also, there are options to undo, redo, zoom in, and zoom out.
2. **Question: What is the molecular shape of BeF₂?**
The options provided are:
- tetrahedral
- linear
- trigonal pyramidal
- trigonal planar
- bent
#### Explanation of Graphical Tools:
- **Select Tool**: To select elements or bonds for modification.
- **Draw Tool**:
- Single bond (line)
- Double bond (two parallel lines)
- Triple bond (three parallel lines)
- **Rings Tool**: To add cyclic structures.
- **More Tool**: For additional drawing options and elements.
- **Erase Tool**: To remove any unwanted parts of the structure.
- **Element Boxes**: Click on "Be" or "F" to place those elements in your drawing area.
- **Undo and Redo**: To correct mistakes or reapply actions.
- **Zoom In/Out**: For adjusting the view.
#### Additional Instructions:
- Use the tools on the left panel to draw the structure of BeF₂.
- Make sure to place the lone pairs on the fluorine atoms.
- After completing the drawing, consider the geometric arrangement and answer the question about the molecular shape.
### Understanding the Shape:
After drawing the structure, you'll need to determine the correct molecular geometry of BeF₂. This can be inferred based on the Valence Shell Electron Pair Repulsion (VSEPR) theory:
- BeF₂ structure typically has a linear shape due to the positioning of electron pairs around the central beryllium atom, which minimizes rep](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7d591113-c73d-4bf8-a1b7-9966513ce440%2Ff1c9ddcf-40a2-48f5-b1c0-f826f0d00ce7%2Fflo3uai_processed.png&w=3840&q=75)
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