The periodic table is organized by groups - Columns of elements that share similar chemical properties due to the same number of valence electrons. Alkali metals are highly reactive and found in Group 1. Alkaline earth metals in Group 2 are also reactive but less so. Halogens in Group 17 are highly reactive nonmetals that form salts. Noble gases in Group 18 are virtually inert. Transition metals occupy the central block and include many industrially important metals. In this sortable quiz, you'll drag chemical elements into their correct periodic table group. Whether you're a chemistry student or science enthusiast, this quiz will reinforce your knowledge of the periodic table's structure and elemental properties.
Unsorted items will count as wrong.