In Chemidle, the goal isn’t to guess a word – it’s to solve a balanced chemical equation. You build your guess using numbers, ...

According to CNN, Clarice Phelps contributed to the discovery that filled in square 117 on the periodic table, creating tennesine (Ts), the second-heaviest known element on Earth.

Periodic Table Courtesty of DePiep, CC Countless Adventures for Curious Familes Limited Time: Bonus Issue Offer Subscribe now and gift up to 4 bonus issues—starting at $34/year.