Illustrated here are three different of carbon. they vary by the number of a) ions; neutrons b) ions; electrons c) molecules; protons d) isotopes; neutrons

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

In a hydrogen molecule there are a total of four charges, 2 protons in the two nuclei, and 2 electrons. how many unique charge-pairs are there (without double counting)?

Which inventor was often called the lady edison