The correct response that will be used to describe this particular element would be the third option, since all of the other options are incorrect and apply to different elements in their groups. The element is a metal and will react with a non metal. 
        
             
        
        
        
Answer: William Thomson, better known as Lord Kelvin
 
        
                    
             
        
        
        
Answer:
A theory changes based on new observations and testing.
Explanation:
A scientific theory is a product of multiple trials and repeated experiments. It usually follows after carefully conducting and testing the validity of the hypothesis. 
A scientific theory provides an explanation into how something behaves. 
A law just states a finding will not explain it. 
Most theories are tenable and can be improved upon when new observations and testing are carried out. 
 
        
             
        
        
        
Explanation:
Below is an attachment containing the solution. 
 
        
             
        
        
        
Curvy lines with light glooming