Page 242 - Science Course 1 (Book 1)

Mo6-L6c: What Elements are Metalloids?

Mo6-L6c What Elements are Metalloids?

KEY CONCEPTS: Let’s Begin
1. What are metalloids in on the periodic table?

How are nonmetals different from metals?

Between the metals and the nonmetals on the
Vocabulary A-Z periodic table are elements known as metalloids.
Let us learn some vocabulary
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Metalloid

an element that has physical and chemical
properties of both metals and nonmetals.
Metalloids

Metalloid A metalloid is an element that has physical and
chemical properties of both metals and nonmetals.

Semiconductor

a substance that conducts electricity at high
temperatures but not at low temperatures.

The elements boron, silicon,
germanium, arsenic, antimony,
tellurium, polonium, and astatine
are metalloids.
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Si

Silicon is the most
abundant metalloid
in the universe. Silicon

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