When drawing lewis structures for simple molecules, you need to first sum the number of valence electrons from all atoms in the molecule. how many valence electrons should you use to draw a lewis structure of carbon dioxide (co2)?

can someone - there's no options

Omg I love Lewis structures!

You have to first identify the central atom. In this case the central atom is Carbon, and it's surrounded by two oxygen atoms.
Carbon has 4 valence electrons. Oxygen has 6 valence electrons. it will have two double bonds.
I'll take a pic of it.

20/9.8 = 2.0 seconds. The ball stops after 2 seconds.