identify and describe the particles that make an atom. see next slide

Identify and describe the particles that make an atom.

See next slide.

The size of an atom can be compared to the size of _______________________

Let’s explore and find out!

Wait for Mrs. Z before clicking on the website below!

http://www.miamisci.org/af/sln/phantom/papercutting.html

http://education.jlab.org/atomtour/

Click on the link below Complete the worksheet called

“Virtual Tour of the Atom”

1. Atoms are the basic building blocks of matter that make up everyday objects such as _____________, _______________, and ______________.

2. There are _____ naturally occurring kinds of atoms.

3. Name the 3 basic particles in an atom & their charges.

a.

b.

c.

4. __________ electrons = the mass of 1 proton

5. ____________ and ______________ have about the same masses.

6. Atoms have the same number of ________________ as protons.

7. Adding a ____________________ makes a new atom.

deskme & you

air

90

Protons – positive charge

Neutrons – no charge

Electrons – negative charge

1836

Neutrons protons

electrons

proton

http://www.miamisci.org/af/sln/phantom/spectroscope.html

So, matter is made up of tiny particles

called…

Molecules are made up of tiny

particles called…

Lets zoom in…

One water molecule is made of 3 atoms…

Atoms are made up of tiny particles

called…

Electrons hold the atoms together to form molecules.

Atoms are the smallest particles of the elements. There are over 100 different atoms. They are very, very, very small and yet they contain even smaller particles called electrons, neutrons and protons. Atoms bond to make molecules.

Atoms: The building blocks of matter, the smallest particles of an element.

Protons: small particles in the nucleus of an atom. They have a positive charge.

Neutrons: small particles in the nucleus of an atom. They have no charge.

Electrons: tiny particles of an atom that move around the nucleus. They have a negative charge.

+

-

N

Finding something in a mixed-up group

OR

Finding something when it’s organized?

1

109

8

7

6

54

3

2

1

10

9

8

7

6

5

4

3

2

1

10

9

8

7

6

5

4

3

2

110

9

8

7

6

5

4

32

1

109

8

7

6

5 4

3

21

10

9

8

7

6

5

4

3

2

1

10

9

8

7

6

5

4

3

2 1 10

9

8

7

6

5

4

3

2

1 1098765432

1 1098765432

1 1098765432

1 1098765432

Discuss at your table:

How could you organize the elements into an easy to use format?

Would you organize them in ABC order?

Would you organize them by atomic #?

What other ways can you think of?

26Highlight 10 or more elements you know something about and write what you know about it on the back of this paper.

Notice that # 71 and # 103 are out of place.

If the elements on the bottom were placed where they really

belong the table would be too wide for a one page document.

114 116 Uuo

Uuq Uuh

118

Rf Uuq112

Uub

110

Ds

111

RqDb Sq Bh Hs Mt

Use the words from this Word Bank to fill in the missing information: families, groups, atomic number, elements, periods

elements

groupsperiodsatomic #

families

ELECTRON MICROSCOPES