Terms
History of the Periodic Table
Types of Elements
Elements Reactivity
Electron Configurations
100
A horizontal row of elements on the periodic table is called?
A Period.
100
The Ancient Greeks thought that all matter was made of five elements. Name these five elements.
- Air
- Earth
- Fire
- Water
- Aether
100
The elements in Group 1 are...
Alkali Metals
100
Sodium is an alkali metal. Describe the typical properties of this element.
- Dense, ductile, malleable, lustrous solid
- highly conductive, electrically and thermally
- are reactive, especially with nonmetals
100
How many valence electrons are in Phosphorus?
5
200
A vertical column of elements in the periodic table is called?
A group
200
An interest in studying elements and other materials led to the ride of scientists called...?
Alchemists
200
Barium belongs to the group of elements that go by this name...
Alkaline-Earth Metals
200
Describe the typical properties of a metalloid and give an example.
- exist as a brittle solid with a metallic luster
- are fairly conductive, increasingly so as the temperature rises
- reactivity varies
200
Write the electron dot notation for Fluorine and Neon.
300
One-half the distance between the nuclei of two identical atoms that are bonded together is...?
Atomic radius
300
Antoine Lavoisier discovered what element?
Oxygen
300
The elements in Groups 3-12 are...
Transition Metals
300
Name one of the least conductive elements on the periodic table.
- Any element in Group 18
300
How many neutrons does the element Tungsten (W) have?
110
400
The measure of an elements ability to attract and hold electrons is called...?
Electronegativity
400
Name the scientist that organized the elements with the following:
- Latin Name
- Capitalized Letter
Jacob Berzelius
400
The elements on the stair-step of the Periodic Table are...
Metalloids
400
Using the periodic table, would you expect oxygen or selenium to act more like a non-metal?
Oxygen is farther from the stair-step so it should have a stronger non-metal character.
400
How many valence electrons are in Scandium (Sc)?
3
500
What is a valence electron?
an electron of an atom, located in the outermost energy level (valence shell) of the atom, that can be transferred to or shared with another atom.
500
Name the scientist that organized the elements by columns and is considered the grandfather of The Periodic Table.
Dmitri Mendeleev
500
The elements to the right of the stair-step are known as...?
Non-metals
500
This group or family of elements has the outermost energy level completely full
Nobel Gases
500
Write the electron dot notation for Phosphorus (P).
