Instructions in-game. The correct answer turns green. This is a game I made for my chemistry class, so unfortunately, if you haven't studied chemistry, you might have a little trouble playing this game. I left an article in the Notes and Credits, and leave a comment if you have any questions and I'll try my best to answer them! Let me know if you spot any glitches or misinformation. :) Known glitch: If the two elements are equal for that trend, it only shows one of them as the right answer.
More information (for curious people) If you're interested in learning about atomic trends, check this out: https://chem.libretexts.org/Core/Inorganic_Chemistry/Descriptive_Chemistry/Periodic_Trends_of_Elemental_Properties/Periodic_Trends For each element, the number in the corner is the atomic number, or how many protons that element has. The number below the element name is its mass in grams per mole. The group is its column in the periodic table, and the period is its row. Again, I'm happy to answer questions if you want to learn even more!
