Which of the following is true about an individual atom? Explain. 

a. An individual atom should be considered to be a solid. 

b. An individual atom should be considered to be a liquid. 

c. An individual atom should be considered to be a gas. 

d. The state of the atom depends on which element it is. 

e. An individual atom cannot be considered to be a solid, liquid, or gas. 

Justify your choice, and for choices you did not pick, explain what is wrong with them.