Answer the following questions based on the given pictures:
 
Compound P:
1000077519.png
Compound Q:
1000077520.png
 
1. Which ion is formed when bromine gains one electron? - .
 
2. Why are two chlorine atoms required in Compound Q? - .
 
3. Which statement is true for both compounds? - .
 
4. Which non-metal atom gains the greatest number of electrons? - .