Elements
Periodic Table
People
Atoms
Other
100
Oxygen
Which element is crucial to human life
100
Elements
What is the periodic table made out of
100
Dmitri Mendeleev
Who created the periodic table of elements
100
An atom
What is the smallest thing in the universe
100
Positive
What kind of charge do protons have
200
No
Is gallium radioactive
200
They are orginized by their atomic number
How are elements in the periodic table orginized
200
Lothar Meyer
Who classified all the elements into six families
200
Protons, neutrons, electrons
What are the three electric charges that are in an atom
200
Negative
What kind of charge does a electron have
300
F
T/F uranium is the most radioactive element in the periodic table
300
7
How many periods are there in the periodic table
300
Ernest Rutherford
Who discovered the proton
300
500 meters
If an atom was on human scale, how far away would an electron be from the nucleus of an atom
300
Neutral
What kind of charge does a neutron have
400
No
Is a human able to breath an entire tank of helium
400
118 elements
How many elements are in the periodic table
400
James Chadwick
Who found the neutron
400
Albert Einstein
Who discovered the equation E=mc 2
500
Polonium
What is the most radioactive element on the periodic table of element
500
Californium
What is the most expensive element in the periodic table
500
Democritus
Who first bought thought up the idea of an atom
500
About 3
About How many atoms are in a molecule
500
Because they make up everything
Why can’t you trust atoms
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