Previously for Valentine’s Day, Google reunited two lovesick hamsters for its Google Doodle. This year, the search engine went in a more scientific direction.

Click on the Google Doodle on the site’s homepage and a Chemistry “CuPd” quiz pops up. You have the option to take the quiz — five quick personality questions — to determine which chemical element you are, or choose one yourself.

chemistry cupd google doodle quiz with buttons to take a quiz or select your element

Google’s Chemistry CuPd quiz for Valentine’s Day.
Credit: Screenshot via Google

element personality quiz question how would you describe yourself with options free spirit; go with the flow; or sturdy and grounded

First question of Google’s element personality quiz.
Credit: Screenshot via Google

The options include hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine. Each comes with a tongue-in-cheek dating profile. The quiz determined I’m nitrogen, which profile starts with, “Let me be the 78 percent of the wind beneath your wings.” According to NASA, 78 percent of the air in earth’s atmosphere is made up of nitrogen.

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nitrogen dating profile

Nitogren’s dating profile.
Credit: Screenshot via Google

Once you figured out which element you are, it’s time to get to work and find a valentine. Using a cheeky Tinder-esque swipe function, you can find out which element you’re compatible with. When I swiped right on argon, for example, it wasn’t a match. But nitrogen and oxygen have “good chemistry,” so I was able to tap and hold and see the elements combine into nitric oxide.

nitrogen and oxygen match with text it's a bond! you and oxygen have good chemistry. tap and hold to combine

Nitrogen and Oxygen are a match — err, a bond.
Credit: Screenshot via Google

nitric oxide illustration with text, these two combine together in a flash of lightning! as gases in lightning rapidly heat and cool, NO forms. not great for air quality, but still pretty exciting.

Nitric Oxide couple pic!
Credit: Screenshot via Google

With seven elements and detailed profiles for each, you can spend a good part of your day experimenting with different combinations. You can tell a lot of work — and love — went into this Google Doodle. On Google’s website you can take a peek into the creation of this Valentine’s Day Google Doodle, including early illustration drafts and the names of the artists, engineers, and other workers who made it come together.

“There’s no stronger bond than love, especially when the chemistry is just right,” the About page says.