I have a balloon below and I squeeze it until it is about to pop. This is decreasing the volume. What happens to the pressure inside? What are the molecules doing inside?

Pressure goes up

Explanation:

The pressure is inversely proportional to the volume.  So when volume is decreased the pressure rises.

The molecules are getting pushed closer together and more collisions occur which will also increase the temperature.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.