Vertical column of elements (from top to bottom) on the Periodic Table.
What is a group?
200
Elements on the most left of the Periodic Table.
What are metals?
200
A Russian chemist that discovered a pattern to the elements in 1869.
Who is Dmitri Mendeleev?
200
Non-metals that have an outer electron of 8, unreactive, and colorless, odorless, and gases at room temperature.
What are Noble Gases
200
This is the only metal that is liquid at room temperature.
What is Mercury
200
Less reactive than regular Alkali metals and have 2 outer level electrons. They are dense and sliver colored.
What are Alkali-Earth Metals?
300
Elements on the most right of the Periodic Table
What are non-metals?
300
Means "happening at regular intervals."
What is Periodic?
300
This group includes an important substance necessary for things to burn and for us to breathe.
What is the Oxygen Group?
300
These are types of elements that tend to be shiny, ductile, malleable, and good conductors of electricity.
What are Metals?
300
This group has metals, have an outer electron level of 1 or 2, less reactive than Alkali Metals, and are shiny, good conductors, and higher density and melting points than elements in group 1 and 2, but Mercury
What are Transition Metals?
400
The elements that are between the blue elements and the yellow elements. (Color coded from Science book)
What are metalloids?
400
A British scientist who determined the number of protons-the atomic number-in
Who is Henry Moseley?
400
A not very reactive gas that humans can breathe. It is only found combined with other elements.
What is the Nitrogen Group?
400
Are elements that aren't shiny, ductile, poor conductors of electricity, and brittle.
What are Non-Metals?
400
Very reactive non-metals that combine readily with other atoms. Some examples are chlorine and iodine. They have 1 electron in the outer level.
What are Halogens?
500
What can help you recognize which are metals, non-metals, and metalloids?
What is a zigzag line?
500
Horizontal row of elements (from left to right) on the Periodic Table.
What is a period?
500
The most reactive metals that are often stored in oil. They're mostly found in nature combined with other elements.
What are Alkali Metals?
500
Often called semi-metals and have some properties of metals and non-metals.
What are Metalloids?
500
Contains one metalloid and five metals, is reactive, has an outer electron level of 3, and is solid at room temperature.