Inertia depends on the mass of an object. 
        
                    
             
        
        
        
Answer: Fluorine
Explanation: It belongs in the same group as Bromine
 
        
             
        
        
        
Answer:
Electrons have an electric charge of -1.60 × 10-19 C 
Explanation:
Neutrinos and Neutrons have 0 e charge.
Protons have an electric charge of 1.60 × 10-19 C
Historically, electrons were assigned a negative charge
 
        
             
        
        
        
Its A because I did it on connexus