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Vocab
Vocab 2
Misc.
Misc.
100
These metals react with water to form hydrogen.
What are alkali metals?
100
Chlorine and iodine are these.
What are halogens?
100
Most elements in the periodic table are this.
What is metal?
100
This is necessary for substances to burn.
What is oxygen?
200
This metal, part of the Boron Group, is used for aircraft parts.
What is aluminum?
200
This is a colorless, odorless gas.
What is hydrogen?
200
Mendeleev arranged the elements by this.
What is increaskng atomic mass?
200
Transition metals are good conductors of this.
What is thermal energy?
300
This is important to most living things.
What is oxygen?
300
Diamond and soot are forms of this.
What is carbon?
300
The horizontal row on a periodic table is called this.
What is period?
300
Mendeleev found that the properties of the known elements followed a pattern that repeated every ___ elements.
What is 7?
400
Cement and chalk are compounds of this.
What is calcium?
400
This makes up about 80% of the air we breathe.
What is nitrogen?
400
This tells you the physical state of an element at room temperature.
What is the color of the chemical symbol?
400
The vertical column of elements on the periodic table is called this.
What is a group?
500
Some of these reactive metals are used to make steel.
What are lanthanides?
500
Light bulbs last longer when they are filled with this gas.
What is argon?
500
Chemical and physical properties of the elements change across each what?
What is period?
500
The elemnts on this side of the periodic table are the most metallic.
What is left?