1. Atomic Structure Atomic Structure Song by Mr. Parr
Put your First and Last Name on your Booklet
Class Period
Mrs. Johnson

2. Open up your Booklet Page 1
Definitions 1

3. Atom
The smallest particle of matter that displays the properties of an element.

4. Element Element Rap
A substance composed of only one kind of atom – it cannot be broken down into simpler substances by ordinary means.

5. Turn the page in your Booklet Page 2 - 3
Definitions
Draw and Label Diagram 2 3

6. Structure of an atom Shell NEUTRON ELECTRON NUCLEUS PROTONS
Part of an Atom Song by Mr. Parr
Shell
NEUTRON
The space outside the nucleus where electrons orbit
The particle having no charge and found in the nucleus of an atom
ELECTRON
The negative particle of an atom that orbits the nucleus.
NUCLEUS
PROTONS
The center of the atom which contains protons & neutrons – has a positive charge
Positive particle found in the nucleus of an atom

7. How to read an Element on the Periodic Table
Definitions
Draw and Label Diagram 4 5

8. 8
Atomic
Number O
Chemical
Symbol
Name
Oxygen
Atomic Mass
16.00

9. In an atom, the number of protons is equal to the number of electrons.8
Atomic
Number
Atomic Number:
the number of protons (electrons) in an atom – it is used to identify an element. O
Chemical
Symbol
Name
Oxygen
Atomic Mass
Atomic Mass: the mass of the nucleus – it is the number of protons plus the number of neutrons.
16.00
In an atom, the number of protons is equal to the number of electrons.
*To calculate the number of neutrons, subtract the atomic mass minus the atomic number.

10. H H Hydrogen - Symbol Atomic # Atomic Mass 1 1 1 1 1 = Hydrogen 1.008
# of Protons
# of
Neutrons
# of
Electrons - =

11. S S Sulfur 16 - Symbol Atomic # Atomic Mass 16 16 16 16 16 = Sulfur
32.07 32 32
# of Protons
# of
Neutrons
# of
Electrons - = 16

12. K K Potassium 20 - Symbol Atomic # Atomic Mass 19 19 19 19 19 =
39.10 39 39
# of Protons
# of
Neutrons
# of
Electrons - = 20

13. Ne Ne Neon 10 - Symbol Atomic # Atomic Mass 10 10 10 10 10 = Neon
20.18 20 20
# of Protons
# of
Neutrons
# of
Electrons - = 10

14. Atomic Structure Worksheet

15. Page 8-10 in your Atom Structure Booklet
Bohr Model of an Atom
Page 8-10 in your Atom Structure Booklet

16. Valence Electrons
An electron that is found in the outermost shell of an atom and that determines the atom’s chemical properties.
The number of electrons in the outermost energy level of an atom determines whether an atom will form bonds.
An atom is considered to be full if the energy level contains 8 electrons.
Page 8

17. An atom can have up to 7 Shells…K L M N O P Q
NUCLEUS
Page 9

18. K L M N O P Q You only need to know the first 4 - - - - 2 e 8 e 8 e
ELECTRONS
(- charge)
Page 10

19. Let’s Practice Drawing Bohr Models for Lithium
Page 10

20. Li Li Lithium - = 4 # of Protons # of Neutrons # of Electrons 3 3 3 37 7
6.941
NUCLEUS
K = 2
+ L = 1 -
3 e
ELECTRONS
(- charge)
Page 10

21. P P Phosphorus - = 16 # of Protons # of Neutrons # of Electrons 15 1531 31
30.97
NUCLEUS
K = 2
ELECTRONS
(- charge)
L = 8
+ M = 5
Page 10 -
15 e

22. K K Potassium - = 20 # of Protons # of Neutrons # of Electrons 19 1939 39
39.10
NUCLEUS
K = 2
L = 8
ELECTRONS
(- charge)
M = 8
+ N = 1
Page 10 -
19 e

23. Bohr Model Extra Credit
Choose element of your choice and do the following.
Must include:
Name of Element
# of Protons
# of Electrons
# of Neutrons
Drawing of Bohr Model

24. Bohr Model Worksheet