Lesson 6Intermediate~8 min
Reading the Periodic Table
Decode any element tile, then read the table's deeper structure: groups, periods, blocks, and categories.
periodic tablegroupsblocks
Step 1 of 7
Concept
Anatomy of a tile
Every tile on the periodic table carries the same four facts: the atomic number (proton count), the chemical symbol, the element's name, and its standard atomic mass.
Mass appears in brackets for elements with no stable isotope — a small honesty built into the table itself.