Transcript Life Science

Physical Science
Unit Overview:
Chapter 7 – Types of Matter
•Lesson 1 – Properties of Matter
•Lesson 2 – Elements
•Lesson 3 – Classifying Elements
•Lesson 4 – Mixtures
•Lesson 5 - Compounds
Chapter 8 – Changes in Matter
•Lesson 1 – Chemical Reactions
•Lesson 2 – Metals and Alloys
•Lesson 3 – Salts
Classifying Elements
Lesson Overview:
1) What do we already know?
2) Vocabulary
3) Drawings
4) Main Ideas
5) Review
Types of Matter: Lesson 2
Page 1
Classifying Elements
What do we already know?
BrainPOP Teaser
1) What is an element?
a) It is the simplest form of matter and
makes up all other substances.
2) What are atoms?
a) The smallest particle of matter that
has the properties of elements.
Page 2
Classifying Elements: Vocabulary Part I
1) Protons: are located in the nucleus of an atom.
2) Neutrons: are located in the nucleus of an atom.
3) Electrons: are located outside of the nucleus and
orbit around the nucleus.
4) Atomic Number: is the number of protons in an
atom. Every element has a different atomic number.
5) Atomic Weight: Is the measure of its mass that is
calculated by adding the number of protons and
neutrons together.
6) Molecule: is a particle that contains more than one
atom joined together.
Types of Matter: Lesson 2
Page 3Classifying
Elements: Vocabulary Part II
(pg. 354-355)
7) Metal: is a substance/element that conducts heat and
electricity.
8) Nonmetal: is a substance/element that is a poor
conductor of heat and electricity.
9) Noble gases: are nonmetallic elements that are inert.
They are helium, neon, argon, krypton, xenon and
radon.
10) Metalloids: are a very small group of elements that
have properties of both metals and nonmetals. .
11) Periodic Table: arranges all known elements into
rows and columns of increasing atomic number.
Types of Matter: Lesson 2
Page 4
Classifying Elements
(pg. 366-367)
Types of Matter: Lesson 2
Page 5
Classifying Elements: Drawings
(pg. 368)
Types of Matter: Lesson 2
Page 6
Classifying Elements: Main Ideas
1) Classify characteristics of elements (pg. 366-367)
Metals
Nonmetals
Noble Gases Metalloids
Make up 75% of the
periodic table
There are 17
nonmetal elements
There are 6 Noble
gases
They are a very
small group
Usually solid at
room temperature
Usually gas at room
temperature
Usually gas at room
temperature
Properties of both
metal & nonmetal
Good conductor of
heat & electricity
Poor conductor of
heat & electricity
Inert: rarely react
with other elements
Conduct heat &
electricity better
Shinny when
polished
Do not usually shine
when polished
than nonmetals, but
not as good as
Can be bent &flatten They will break
without breaking
rather than bend
Some are magnetic
Exm: Silver, gold,
copper & iron
metals
Helium, neon,
Exm: Helium,
Nitrogen & oxygen
argon, krypton,
xenon radon
Exm: boron, silicon
& germanium
Types of Matter: Lesson 2
Page 7
Classifying Elements: Main Ideas
2) How is the periodic table organized?
(pg. 368-369)
- Organized all known elements in rows and
columns in increasing atomic numbers.
- Different colors represent the different groups
of elements (nonmetals, metals, & metalloids)
- Columns are called families or groups
- Rows are called periods
- Each box represents an element & it includes
the name, symbol and atomic number.
Types of Matter: Lesson 2
Page 9
Elements: Review
1) Summarize the main ideas
1) Click here to watch
2) Think, Talk, and Write
Types of Matter: Lesson 2