1. 5.8 Review – The Periodic Table

2. Explain how Mendeleev organized the known elements
Mendeleev arranged the elements into rows in order of increasing mass so that elements with similar properties were in the same column.

3. Because Mendeleev’s periodic table had holes in it, what was he able to predict?
Mendeleev was able to predict that there was going to be new elements discovered. He needed to leave spaces or “holes” for these undiscovered elements.

4. How is the current periodic table arranged. a
How is the current periodic table arranged? a.) What is the difference between a period and a group/family?
The current periodic table is arranged by increasing Atomic Number
a.)
Period – The horizontal rows on the Periodic Table
Group/Family – Vertical columns on the periodic table

5. Elements in the same _________ have similar chemical properties
Groups/families (vertical columns)

6. There are seven _______ on the periodic table.
Periods

7. The average of all isotopes found in nature.
Define Atomic Mass
The average of all isotopes found in nature.

8. Describe the group’s metals, nonmetals, and metalloids.
Left side of periodic table, good Conductors, solid at room temperature, malleable, ductile
NON-METALS
Right side of periodic table, poor Conductors, gases or liquid at room temperature, can be reactive or non-reactive
METALLOIDS
Elements with properties of metals and non-metals.

9. Define valence electron
Electrons in the outside energy level of an atom

10. Draw a Bohr model for the following:
a. Be (Beryllium)
b. N (Nitrogen)
c. O (Oxygen)

11. Draw a Draw a dot diagram for the following:
a. Be (Beryllium)
b. N (Nitrogen)
c. O (Oxygen)

12. Make a table showing the groups of the periodic table
Make a table showing the groups of the periodic table. Include characteristics of the group that were given in class.
FAMILY
THE
ALKALI
METALS
Group 1
(IA)
ALKALINE
EARTH METALS
Group 2
(IIA)
TRANSISTION
Group (3-12)
BORON
Group 13 (IIIA)
Characteristics
1 Valence Electron
Reactive (Top to Bottom)
Violent With Water
2 Valence electrons
Not as reactive
Bridges left and right side
Valence electrons vary
Metallic Properties
3 Valence electrons

13. Make a table showing the groups of the periodic table
Make a table showing the groups of the periodic table. Include characteristics of the group that were given in class.
FAMILY
CARBON
Group 14
(4A)
NITROGEN
Group 15
(5A)
OXYGEN
Group 16
(6A)
HALOGEN
Group 17
(7A)
Characteristics
4 Valence electrons
5 Valence electrons
6 Valence electrons
7 Valence electrons
Highly Reactive
Non-Metal

14. Make a table showing the groups of the periodic table
Make a table showing the groups of the periodic table. Include characteristics of the group that were given in class.
FAMILY
NOBLE
GASES
Group 18
(8A)
Characteristics
8 Valence electrons
Colorless
Odorless
Stable

15. Where is the Lanthanide Series Located?
The 2nd to last row on the periodic table

16. Where is the Actinide Series Located?
The last row on the periodic table

17.  Explain how the trend of density changes as you move down a family of the periodic table.
As you move down a column, within family on the periodic table, density tend to increase.

18. Any Questions??? Good luck on your Quiz!!!!!