Periodic Mole
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Periodic Table

Tap any element to see how it bonds, where you meet it in the games, and the concept pages that explain it.

Alkali metal6
Alkaline earth metal6
Transition metal38
Post-transition metal11
Metalloid7
Nonmetal7
Halogen6
Noble gas7
Lanthanide15
Actinide15

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Family

Metalloid

The diagonal staircase between metals and nonmetals. Semiconductor behavior — the basis of modern electronics.

Worth knowing

  • Properties intermediate between metals and nonmetals.
  • Silicon and germanium are the workhorse semiconductors of every chip in your phone.
  • Boron and silicon are network- solids — hard, high-melting, brittle.

Examples

BSiGeAsSb

Behind the name

The Periodic Table

Mendeleev's pattern that lets a chemist predict an unknown element from its neighbors. Read the lore →

The Mole

6.022 × 10²³ of anything. The counting unit that bridges atoms and grams. Read the lore →