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Elements
People
Periodic table
Atoms
Other
100
Oxygen
What is the most crucial element for human life
100
Dmitri Mendeleev
Who arranged the elements in order of their atomic number
100
500 meters
What is the distance between an electron to the nucleus of an atom on a human scale
200
No
Is an entire can of helium breathable
200
Dmitri Mendeleev
Who created the periodic table of elements
200
18
How many groups are in the periodic table of elements
200
Positive, negative, and neutral
What kinds of electric charges are in a atom
200
Isotopes
What are atoms of the same element, but have different numbers of neutrons called
300
J.J. Thompson
Who discovered the electron
300
The oxygen family
What family is the first group of the periodic table in
300
Yes
Are atoms in EVERYTHING in the universe
300
F
T/F electrons are stuck to the nucleus of an atom
400
No
Is uranium more radioactive than plutonium
400
Ernest Rutherford
Who discovered the proton
400
About 91
About how many metals are in the periodic table of elements
400
22 atoms
How many atoms are in a grain of sand
400
F
T/F there are 5 molecules in an atom
500
James Chadwick
Who discovered the neutron
500
7
How many periods are in the periodic table of elements
500
5 million million
How many atoms could fit on the tip of a pencil
500
Because they make up everything
Why can’t you trust atoms