What do you have when 16 sodium molecules are followed by batman?

When you have 16 sodium molecules followed by Batman, you have a playful pun on chemistry and pop culture. The 16 sodium atoms can be represented as "Na" (the chemical symbol for sodium), and when you write "Na Na Na Na Na Na Na Na Na Na Na Na Na Na Na Na Batman," it references the famous Batman theme song. It's a humorous way to combine science with a cultural icon.