When light energy hits matter, energy is formed.
A Heat
B Mechanical
C Potential

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.

Which of the following characteristics is fixed, or definite, for all states of matter?