Unit 1: Metals, Nonmetals, and Metalloids

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20 Terms

1

Periodic Table

118 elements

<p>118 elements</p>
2

Physical Property

A characteristic that can be observed or measured without changing the substance

<p>A characteristic that can be observed or measured without changing the substance</p>
3

Metals

Largest element group; they are typically solid, shiny, malleable, and good conductors of heat and electricity.

<p>Largest element group; they are typically solid, shiny, malleable, and good conductors of heat and electricity.</p>
4

Nonmetals

Elements that are dull, not malleable, and poor conductors of heat and electricity; usually gases or brittle solids.

<p>Elements that are dull, not malleable, and poor conductors of heat and electricity; usually gases or brittle solids.</p>
5

Metalloids

Elements that have properties of both metals and nonmetals; semiconductors.

<p>Elements that have properties of both metals and nonmetals; semiconductors.</p>
6

Luster

Surfaces reflects light, shiny

<p>Surfaces reflects light, shiny</p>
7

Conductivity

ability or power to easily transfer heat, electricity, or sound.

<p>ability or power to easily transfer heat, electricity, or sound.</p>
8

Malleability

Ability to be shaped or formed into thin sheets by hammering or pressure.

<p>Ability to be shaped or formed into thin sheets by hammering or pressure.</p>
9

Brittle

Tendency to break, snap, or crack Easily

<p>Tendency to break, snap, or crack Easily</p>
10

Insulator

A substance that resists (stops) electric current, or a material that resists (stops) the flow of heat.

<p>A substance that resists (stops) electric current, or a material that resists (stops) the flow of heat.</p>
11

Conductor

A substance that allows the flow of electric charge or transfers thermal (heat) energy through matter.

<p>A substance that allows the flow of electric charge or transfers thermal (heat) energy through matter.</p>
12

EX of Semiconductor

Silicon

<p>Silicon</p>
13

Element

A pure substance composed of the same type of atom

<p>A pure substance composed of the same type of atom</p>
14

Dull

does not reflect light

15

Ductile

ability of metals to be drawn into wires

<p>ability of metals to be drawn into wires</p>
16

EX of nonmetal

Chlorine

17

Ex of metal

Aluminum

18

Location of Metals

left side of periodic table

19

Location of metalloids

staircase/zig zag

20

Location of nonmetals

right side of periodic table