Unlike a ball, an atom doesn't have a fixed radius. The radius of an atom can only be found by measuring the distance between the nuclei of two touching atoms, and then halving that distance... Does that answer your question?
        
             
        
        
        
Extensional stress. is your answer.
        
                    
             
        
        
        
Hot, soft rock rise from the bottom of the mantle towards the top, cools, and sinks back through the mantle.
        
             
        
        
        
Hi there, the correct answer is C. Reactivity. I know this is the correct answer because I took this quiz recently. Color, boiling point, and density are all examples of physical properties.