Arranging the Elements
Grouping the Elements
Vocabulary
Metals
Nonmetals/Metalloids
100
Mendeleev grouped the elements by this number.
What is atomic mass
100
Most of the elements on the periodic table are these.
What are metals
100
happening at regular intervals
What is periodic
100
All of the actinides are this.
What is radioactive
100
A group of nonmetals that is very reactive
What are halogens
200
Mendeleev's pattern repeated after this many elements
What is 7
200
This is something that can be drawn into thin wires.
What is a metal
200
A row of elements read from left to right
What is period
200
In the boron group, the most common element is this.
What is aluminum
200
A group of nonmetals that are not very reactive
What are noble gases
300
All of the recently discovered elements follow this law.
What is periodic law
300
Alkali metals are this.
What is very reactive
300
A column of elements read from top to bottom
What is group or family
300
This group of metals is slightly less reactive than the alkali group.
What is alkaline earth metals
300
This compound is necessary for life on Earth and is found in CARBOhydrates.
What is carbon
400
The number at the top of each element on the periodic table is called this.
What is atomic number
400
If a halogen reacts with a metal, this is formed
What is a salt
400
The most reactive metal family
What is alkali metals
400
These metals are groups 3-12 on the periodic table
What are transition metals
400
Germanium and _____________ are used to make computer chips
What is silicon
500
The number at the bottom of each element is known as this.
What is atomic mass
500
This noble gas is used to help light-bulbs last longer
What is argon
500
The least reactive nonmetal family
What is noble gases
500
As you move from left to right across a row, elements become less __________________.
What is metallic
500
This substance is necessary in order to burn anything.
What is oxygen
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