1. Notes Science Tennessee SPI Objective:
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SPI
Periodic Table
Notes
Science
Tennessee SPI Objective:
Use the periodic table to determine the properties
of an element.
Check for Understanding
Identify the atomic number, atomic mass, number of protons, neutrons, and electrons in atoms using the periodic table.
Essential Question
How do I use the periodic table to determine the
atomic number, the atomic mass, the number of
sub-atomic particles, & other properties in an atom?

2. The Periodic Table We use a chart to organize elements called…
Currently scientists believe there are only 98 naturally occurring elements in the universe (Reference link: Chemistry Website
We have also created 20 man-made elements for a total of 118

3. Notes Science Periodic table SPI 0807.9.9 Periodic Table Purpose
Is a chart of all known chemical elements
Displays the different types of atoms (called elements)
Purpose
Is a tool used to quickly locate a variety of information about a particular element
How is it organized
Organized into rows called periods
Organized into columns called groups (also called families)
Arranged in numerical order by the atomic number
Also arranged other ways (metals, nonmetals, metalloids, etc)

4. H 1 Hydrogen 1.0 Notes Science Info in each square SPI 0807.9.9
Periodic Table
Notes
Science .
Info in each square
Atomic number
is the number of protons!
also matches the number of electrons!
Chemical symbol
Element name
Atomic mass
Is the average mass of a sample of hydrogen atoms
Hydrogen 1 H
1.0

5. How to determine the number of neutrons
SPI
Periodic Table
Notes
Science .
How to determine the number of neutrons
Lithium 3 Li
6.941
Two Simple Steps:
Atomic Number
1) Round the atomic mass to the nearest whole number
Example: rounds to 7
2) Subtract the atomic number from this rounded number
Reminder: Atomic number is 3
Example: = 4 neutrons
Atomic Mass

6. Answer these questions on your paper
SPI
Periodic Table
Review
Science .
Answer these questions on your paper
(1) What are elements?
Elements are the different types of atoms
(2) What are the rows and columns called?
Rows are periods & columns are groups or families
(3) Describe 3 ways the periodic table is organized.
…organized in rows (periods) according to the atomic number.
…organized in columns (families) according to similarities
…organized into metals, nonmetals, and metalloids
(4) What is an atomic number?
It is the number of protons in an atom
(5) What is atomic mass?
It is the average mass of a sample of the same kind of atoms

7. Write down your answers
SPI
Periodic Table
Review
Science .
Write down your answers
What is oxygen's atomic number and atomic mass?
Oxygen 8 O
16.0
Atomic Number
Atomic Mass

8. Write down your answers
SPI
Periodic Table
Review
Science .
Write down your answers
How many protons and electrons does each atom of
oxygen have?
Oxygen 8 O
16.0
Atomic Number
…also has 8 electrons
…has 8 protons

9. Write down your answers
SPI
Periodic Table
Notes
Science .
Write down your answers
How many neutrons does each atom of oxygen have?
Two Simple Steps:
1) Round the atomic mass to the nearest whole number
Example: 16.0 rounds to 16
2) Subtract the atomic number from this rounded number
Reminder: Atomic number is 8
Example: = 8 neutrons
Oxygen 8 O
16.0
Atomic Number
Atomic Mass

10. Science Questions SPI 0807.9.9 Periodic Table Periodic Table-Question
Here is an example of a question you might see on a quiz or test.

11. Science Questions SPI 0807.9.9 Periodic Table Periodic Table-Question
Here is an example of a question you might see on a quiz or test.

12. Science Questions SPI 0807.9.9 Periodic Table Periodic Table-Question
Here is an example of a question.

13. Science Questions SPI 0807.9.9 Periodic Table Periodic Table-Question
Here is an example of a question you might see on a quiz or test.

14. Science Questions SPI 0807.9.9 Periodic Table Periodic Table-Question
Here is an example of a question you might see on a quiz or test.