Chemistry / Unit 2 Chem 0279 short lesson, about 20 seconds
Metals, Nonmetals, and Metalloids at Periodic-Table Depth
Captions available
The idea
Metals, nonmetals, and metalloids occupy distinct regions of the periodic table, with metalloids forming a staircase boundary between the other two.
In practice
Silicon sits along that staircase and conducts moderately, unlike aluminum's strong metallic conductivity or sulfur's poor nonmetal conductivity nearby.
Where people slip
This is the same three-way split from Chem 0075, taught again here at table-position depth rather than as new material.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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