What is the molecular geometry of cartsen dioxide, CO2
A) Bent
B) linear tetrahedral
D trigonal pyramidal
E not enough indonmation
The correct answer and explanation is :
The molecular geometry of carbon dioxide (CO₂) is linear. So, the correct answer is:
B) Linear
Explanation:
To understand the molecular geometry of CO₂, we first need to analyze its Lewis structure and bonding. Here’s a step-by-step breakdown:
- Molecular Formula: The chemical formula for carbon dioxide is CO₂, which consists of one carbon (C) atom and two oxygen (O) atoms.
- Electron Distribution: Carbon is in Group 14 of the periodic table and oxygen is in Group 16. Carbon has 4 valence electrons, and each oxygen atom has 6 valence electrons. When forming CO₂, carbon forms two double bonds with the two oxygen atoms to achieve a stable electron configuration.
- Electron Pair Geometry: The carbon atom in CO₂ is surrounded by two regions of electron density (one for each double bond with oxygen). According to the VSEPR (Valence Shell Electron Pair Repulsion) theory, when there are two regions of electron density around a central atom, the electron pairs will arrange themselves as far apart as possible, resulting in a linear electron pair geometry.
- Molecular Geometry: Since both bonds between the carbon and oxygen atoms are identical and the electron pairs around the carbon atom are arranged linearly, the molecular geometry of CO₂ is also linear.
- Bond Angles: The bond angle between the oxygen-carbon-oxygen atoms is 180°, which is characteristic of a linear geometry.
In summary, the linear geometry arises due to the two double bonds between the central carbon atom and the two oxygen atoms. This arrangement minimizes electron repulsion and results in a straight-line structure, making the CO₂ molecule linear.
Here is the image illustrating the linear molecular structure of CO₂, showing the two oxygen atoms double-bonded to the central carbon atom. This arrangement results in a 180° bond angle, confirming that the geometry of CO₂ is linear. Let me know if you’d like further clarification!