Build atoms, ions, and by adjusting protons, neutrons, and electrons. Access atomic theory explanations and an interactive periodic table. View element composition details and compare different atomic structures.
Look up words with detailed definitions, translations, and examples. Search for - and - terms. Access extensive vocabulary and specialist terminology. View language style levels and usage notes. Save favorite entries for quick reference.
The app is a puzzle game that challenges perspicacity and agility. Users pair up two same cards that can be connected by a line folded no more than two times to clear the table and reach the next level.
