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Bell Work 8/25/14
Number your paper from 1 to 5.
See if you can determine what the following magnified photos are.
1.
2.
3.
4.
5.
Materials:-PRIDE Card-IN-Pencil/Pen-Foldable
The Answers:
1.
2.
3.
4.
5.
Learning Targets
Target Tests1. Identify the function of
materials we use in the science lab.
2. Utilize the metric system to make accurate scientific measurements.
1.
2.
Update your
Table of
Contents!! 8/14/14 The Metric System 21
8/25/14 Minerals ??
• Chemistry
5
Why does it MATTER????• Matter- anything that has volume and mass.
• EVERYTHING that surrounds you is composed of matter!
• There are 4 States of matter
1. SolidsExamples: flowers, wood, the chair you are sitting in.
7
Examples- water, Gatorade, soda
8
2. Liquids
Examples- the sun is made up of many gases, smoke from a fire, water vapor in clouds
9
3. Gases
A gas that is composed of free-floating ions
Example: solar winds
10
4. Plasma
What makes up matter?
11
All matter is made up of elements. Elements are made up of atoms. Atoms are made up of protons, neutrons and electrons.
A few Definitions…Matter elements atoms particles (protons, neutrons, and electrons)
How do we organize Elements?
• There are 92 elements that occur naturally• Other elements have been produced in labs.
Each element is given a chemical symbol
ex: H=hydrogen, Cu=copper
Elements are classified and arranged according to their chemical properties
The Periodic Table is made up of Elements!
• https://www.youtube.com/watch?v=xQu2eSeM66o14
Elements are made up of atoms…..Let’s take a closer look!
Made up of protons and
neutrons
A particle with approximately the same mass as a
proton
A particle with a mass and a POSITIVE charge
A tiny particle with little mass and a NEGATIVE charge
Symbol
Element
Atomic Mass(sum of protons AND neutrons)
Atomic Number(number of protons OR electrons in an atom’s nucleus)
Why don’t we include electrons in the atomic
mass?
Round this number when determining # of
neutrons
Practice!1. What is Iron’s atomic number?26
2. How many electrons does it have?26
3. What is its atomic mass?
55.845
4. How many neutrons does it have?
56 – 26 = 30
17
Let’s Practice!!
18
19
Bell Work 8/26/13 1. How many states of matter are there?
4
2. What are the states of matter?
Solids, liquids, gases, and plasma
3. How many naturally occurring elements are there?
92
20
Don’t forget to
write the
question too!!
The Periodic Table of Elements
***Elements are arranged in columns and rows
Columns• The vertical (up and down)
columns of the periodic table are called groups or families.
• Elements in the same group or family have similar characteristics or properties.
Label each column on your Periodic Table
Rows• The horizontal rows of the periodic table are
called periods. • Elements in a period are NOT alike in
properties.
Label each row on your Periodic Table
Groups/Families
26
Per
iods
All the elements can be classified as:-Nonmetals-Metals
MetalsNon-Metals
Quick Quiz (Uno)1. What element is Group 2 and Period 4?
Calcium
2. Is it classified as a nonmetal, metal or metalloid?
Metal
28
Quick Quiz (Dos)1. What element is Group 8 and Period 4?
Iron
2. Is it classified as a nonmetal, metal or metalloid?
Metal
29
Quick Quiz (Tres) 1. What element is Group 14 and Period 5?
Tin
2. What is that element’s atomic number?50
3. How many electrons does it have?50
4. What is its atomic mass?
118.710
5. How many neutrons does it have?
118.710 – 50 = 68.710 30
Time to Review for TT4
31
Per
iodi
c T
able
of E
lem
ents
32
Per
iodi
c T
able
of E
lem
ents
Periodic Table of Elements
33