Certain isotopes of boron and chlorine are given below. Identify the number of protons and neutrons in each isotope. 
1. boron-11        2. chlorine-35      
3. chlorine-37 

• A. 1) #N = 6, #P = 3 2) #N = 17, #P = 15 3) #N = 17, #P = 17
• B. 1) #N = 6, #P = 5 2) #N = 18, #P = 17 3) #N = 20, #P = 17
• C. 1) #N = 6, #P = 6 2) #N = 18, #P = 18 3) #N = 20, #P = 19
• D. 1) #N = 7, #P = 3 2) #N = 18, #P = 18 3) #N = 20, #P = 19

Answer: (B)