Organizing the Elements
The Modern Periodic Table
The Modern Periodic Table 2
Representative Groups
Representative Groups 2
100
Who was the significant person who modernized the periodic table?
Mendeleev
100
How are elements arranged on the periodic table?
Increasing atomic numbers
100
What are the three groups that elements are classified in?
Metals, Nonmetals, and Metalloids
100
What is a valence electron?
An electron that is in the highest energy level.
100
What are two properties of the Noble Gases?
Colorless, odorless, and unreactive
200
How did Mendeleev organize the periodic table?
They were arranged into rows in order of increasing mass so the similar properties were in each column.
200
What are each column on the periodic table called?
Group
200
Which of the three main groups of elements are good conductors?
Metals
200
What are the first two families of the periodic table? (all the way to the left)
Alkali Metals and Alkali Earth Metals
200
Except for water, most compounds in your body contain which element?
Carbon
300
Why did Mendeleev leave spaces in his table?
He left spaces in order to add new elements discovered.
300
What does the atomic mass of an element tell you?
Number of neutrons
300
Which of the three main groups of elements have low boiling points?
Non metals
300
Why do elements in a group have similar properties?
They have the same number of valence electrons.
300
How does the reactivity level increase for the Alkali Metals: top to bottom or bottom to top?
Top to bottom
400
What game can be related to how Mendeleev organized the periodic table?
Solitaire
400
What is the periodic law?
Properties of elements repeat in a predictable way when atomic numbers are used to manage elements into groups.
400
What makes metalloids unique?
They contain properties from both metals and nonmetals.
400
Which group is the more reactive: Halogens or Noble Gases?
Halogens
400
What makes the the Alkaline Earth Metals react differently from one another?
They react differently with water.
500
What information did Mendeleev have about the elements organized on the periodic table?
Masses and properties
500
Across a period from left to right, what happens to the elements?
They become less metallic and and more nonmetallic in their properties.
500
What happens to nonmetals that are solids at room temperature?
They are very brittle
500
Which element is the most abundant in the Earth's crust?
Oxygen
500
What is the most abundant METAL in the Earth's crust?
Aluminum
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