as the elements in period two on the periodic table are considered in succession from left to right, there is a decrease in atomic radius with an increase in atomic number. This may best be explained by the fact that

particle   p is an electron and particle q is a neutron

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

i think that the answer is c