The question is incomplete; the complete question is,
Hydrogen reacts with an element to form a compound. Which element would have the most electrons available to react with hydrogen?
oxygen
chlorine
neon
nitrogen
Answer:
Chlorine
Explanation:
Chlorine is in group17. chlorine has a total of seven outermost electrons.
All the other elements mentioned in the question Do not have as much electrons as chlorine. Chlorine has seventeen electrons but still forms HCl
