1. Periodic Table of the Elements

3. helium carbon nitrogen sodium silver oxygen mercury neodymium chlorine
gold
mercury
oxygen
hydrogen
helium
sodium
niobium
neodymium
carbon

4. Elements
Science has come a long way since Aristotle’s theory of Air, Water, Fire, and Earth.
Scientists have identified 90 naturally occurring elements, and created about 28 others in a laboratory.

5. Elements
During the Bronze Age copper, arsenic and gold gained widespread use and were isolated as elements due to their value.

6. Elements
In 1766 Henry Cavendish discovered the air, or atmosphere, contained more than one element.
This was the first discovery that there were separate gas elements.

7. Elements
By the start of the 19th century, more than 50 elements were known by scientists.

8. Elements
In 1869 Dmitri Mendeleev published the first periodic table of elements. Mendeleev’s periodic table contained 63 known elements.

10. Elements
The elements, alone or in combinations, make up our bodies, our world, our sun, and in fact, the entire universe.
Elements are the building blocks of matter.

11. Meet the Elements 1. Iron: Fe 2. Oxygen: O 3. Carbon: C
4. Sand: Si + O
5. Neon: Ne
6. Glass and Concrete: Si + O
7. Sugar: C + H + O

12. Meet the Elements 8. Aluminum: Al 9. Mercury: Hg 10. Helium: He
11. Gold: Au
12. Salt: Na + Cl
13. Silver: Ag
14. Chalk: Ca + S + O
15. Tungsten: W

13. Why is it called the Periodic Table?
It is called "periodic" because elements are lined up in cycles or periods.
Each horizontal row in the table is a period.
The first one is short and only has 2 elements, Hydrogen and Helium. The sixth period has 32 elements.

14. What’s in a square?
Different periodic tables can include various bits of information, but usually:
atomic number
symbol
atomic mass
state of matter at room temperature.

16. Color Your Periodic Table
Choose 3 colored pencils
Use p in your book to color your periodic table
Use one color for metals, one for nonmetals, and one for metalloids
Include a color key

17. It’s Elementary, My Dear Watson
1. It is matter made of one kind of atom. 2. They are all the same. 3. The oxygen atoms are different from hydrogen atoms. 4. In nature or in laboratories 5. It’s a chart used to classify all of the elements. 6. About It makes scientific studies more organized and easier to understand. 8. The same symbols are always used to designate the same elements and the organization of the table is always the same.

18. What’s in a Name: Answers p.2
1. Scientists speak many different languages so they needed to develop a system that would allow them to communicate. 2. Greek and Latin 3. a. Einsteinium b. Fermium c. Curium d. Lawrencium 4. states, countries, cities, mythology, planets 5. 1st letter capitalized, 2nd letter lower case 6. No, there are some with 3 letters ( ) 7. Answers vary

19. What’s in a Name: Answers p. 3
Part 1:
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Magnesium
Aluminum
Chlorine
Calcium
Zinc
Part 2: Ne Na Si P S K Fe Cu Ag Au

20. What’s in a Name: Answers p. 4
Part 3:
Gold
Iron
Lead
Silver
Sodium
Part 4: 95 97 98 99 63 32
103
101 93
102