Draw the best lewis structure for ch3-1. what is the formal charge on the c?
Home > Chemistry Questions > Draw the best lewis structure for ch3-1. what is the formal charge on the c?
The most preferred Lewis structure of [CH3]– is given below.
The preferred or best Lewis structure for [CH3]– has a total of 8 valence electrons. The central carbon atom is bonded to three hydrogen atoms via single bonds, and it also has a lone pair of electrons.
Now we need to determine the formal charge on the C atom for the above CH3– lewis structure.
To calculate the formal charge on the central carbon atom, we use the formula given below:
Formal charge = valence electrons – non-bonding electrons – 1/2 * bonding electrons.
For the carbon atom in [CH3]–
⇒ Valence electrons of carbon = 4 (since it is in Group IV A)
⇒ Bonding electrons = 3 single bonds = 3 (2) = 6 electrons
⇒ Non-bonding electrons = 1 lone pair = 2 electrons
⇒ Formal charge on the carbon atom = 4 – 2 – 6/2 = 4 – 2 – 3 = -1
∴ Therefore, the formal charge on the central carbon atom in [CH3]– is -1.
Also check –
About the author
Vishal Goyal is the founder of Topblogtenz, a comprehensive resource for students seeking guidance and support in their chemistry studies. He holds a degree in B.Tech (Chemical Engineering) and has four years of experience as a chemistry tutor. The team at Topblogtenz includes experts like experienced researchers, professors, and educators, with the goal of making complex subjects like chemistry accessible and understandable for all. A passion for sharing knowledge and a love for chemistry and science drives the team behind the website. Let's connect through LinkedIn: https://www.linkedin.com/in/vishal-goyal-2926a122b/