Two elements that come together but don't combine.
What is a mixture?
100
When something is created by being chemically bonded by two or more elements.
What is a compound?
100
Matter that has the same compositions and properties throughout.
What is a substance?
100
Matter made up of one type of atom.
What is an element?
200
Fe
What is the symbol for iron?
200
A mixture where you can see the different parts of this type of mixture.
What is a heterogeneous mixture?
200
By using Chemical formula.
How do Scientists find out what is in a compound?
200
Usually dull in appearance, usually poor in conducting heat and electricity, most are gases at room temperature, and they are very brittle.
What are four characteristics of nonmetals?
200
Atoms of the same element that have a different number of Neutrons.
An isotope is what?
300
Au
What is the symbol for gold?
300
A mixture where you can't see the different parts.
What is a homogeneous?
300
When two or more substances come together but don't combine, AND a compound is when two or more substances combine.
What is the differences between a mixture and a compound?
300
he was a philosopher who thought the universe was made up of empty space and tiny bits of stuff.
Who is Democritus?
300
Shiny or metallic luster, good conductor of heat and electricity, all of the metals are solid at room temperature, and most materials are made of metals.
What are the four characteristics of metal?
400
Symbols that tell what are in a compound and the ratios.
What is a chemical formula?
400
Names of three mixtures.
What is a salad, ice tea, and cool aid?
400
Water, salt,and fire.
Name three commonly found compounds?
.
400
He was the man who called the control part of an atom the nucleus.
Who was Rutherford?
400
Elements that are not commonly found on earth.
What is a synthetic element?
500
Dimitri Mendeleev
Who founded the periodic table?
500
He also supported Democritus's theory and explored it.
Who was Joseph Proust?
500
By particle acceleration.
How do scientists create synthetic element?
500
He was the man who discovered electrons.
Who was J.J. Thomson?
500
They can capture and hold more than 100 times their volume in water and other liquids.