Answer:
silicon and carbon have tge same number of valence electrons !
 
        
             
        
        
        
I believe it’s the first, third and fourth ones. I might be wrong and I’m sorry if I am.
        
             
        
        
        
First, a physical property just identifies it's state, how it looks, color, and that stuff. Let's work on finding that. 
⇔ Ability to rust wouldn't work as a physical property. That one changes the substance, making it a chemical change. So, we know that this can certainly be our answer!
        
             
        
        
        
Answer:
panleukopenia
Explanation:
feline distemper is another name for the feline panleukopenia virus or FPV