What is the name of the gas that is number 8 on the table above?

Answer:
oxygen
Step-by-step explanation:
there isnt really any logical way to solve this, it is memorization, but if you are looking for a good periodic table, i recommend ptable.com, it will give you more information then what you are after
if you have any questions, leave them in the comments and i will try to answer them, if this helped, pls give a brainliest