Which notation is commonly used on force diagrams to show forces acting on an object?

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

The number at the end of an isotope’s name is the number.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp