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