# of electrons (a)  

# of neutron (a)  

cation/anion (a)  

# of protons (a)  

# of electrons (a)  

# of neutrons (a)  

cation/anion (a)  

# of protons= (a)  

# of electrons= (a)  

# of neutrons= (a)  

cation/anion= (a)  

# of protons (a)  

# of electrons= (a)  

# of neutrons= (a)  

cation/anion= (a)  

# of protons= (a)  

# of electrons= (a)  

# of neutrons= (a)  

cation/anion= (a)