Metals, Nonmetals, & Metalloids • The periodic table separates

elements into three groups: the metals, nonmetals, and metalloids.

• Most elements are metals. They are usually shiny, very dense, and only melt at high temperatures. Their shape can be easily changed into thin wires or sheets without breaking. Metals will corrode, gradually wearing away, like rusting iron. Heat and electricity travel easily through metals, which is why it is not wise to stand next to a flagpole during a thunderstorm!

• Nonmetals, on the right side of the periodic table, are very different from metals. Their surface is dull and they don’t conduct heat and electricity. As compared to metals, they have low density and will melt at low temperatures. The shape of nonmetals cannot be changed easily because they are brittle and will break.

• Elements that have properties of both metals and nonmetals are called metalloids. They can be shiny or dull and their shape is easily changed. Electricity and heat can travel through metalloids but not as easily as they travel through metals.

Chapter 1.3 – The Periodic Table is a

map of the elements

*The elements are forged in stars Create a column chart in your notebook on the following 6 topics: • Reactive Metals, Transition

Metals, Rare Earth Metals, Halogens, Noble Gases, Radioactivity.

• Listen to Chapter 1.3

▫ Complete the chart in your notebook

▫ Answer Chapter 1.3 review questions (page 32).

• Complete Homework ▫ Which Atom is Which/Name that

Element – Due Thursday

• Extension Activity:

▫ Complete Chemistry Unit Study Guide

▫ Create an atomic song/poem! Songs can earn bonus points!

Extension Activities 1. Now that you heard the Atoms Family Song, create your own Atomic Song.

Songs can earn bonus points.

2. Read the Story of Atomic Structure

(pages 104-105) – What old theory did Thomson’s atomic model prove false?

3. Make a table of all the metric units that relate to mass and volume.

4. Read “Mass or Weight?” on lab book page 21 and answer accompanying question.

5. The term “density” has a very specific meaning in physical science. Grab a dictionary from the cubbies in room 310 and look up density. What other meanings does density have – use each in a sentence.

Investigate: Is a black hole matter?

Find out more about Thomas Edison on

the next slide.

Extension: Who was Thomas Edison?

• BrainPOP

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Thomas Edison’s Birthday - February 11, 1847 Charles Darwin’s Birthday - February 12, 1809

Particulate Theory (Advanced Extension)