History of Atoms
Subatomic Particles
Periodic Table
Representative Groups
Elements
100
I proposed the theory that all matter is made up of atoms.
Who is Dalton?
100
I am a neutral subatomic particle
What is a neutron?
100
I am the father of the periodic table.
Who is Mendeleev?
100
C, Si, Ge, Sn, Pb
What is the carbon family?
100
the element with the symbol O
What is oxygen?
200
I discovered electrons
Who is Thomson?
200
I am a positively charged subatomic particle.
What is a proton?
200
A horizontal row in the periodic table.
What is a period?
200
N, P, As, Sb, Bi
What is the nitrogen family?
200
element with the symbol P
What is phosphorous?
300
I discovered protons.
Who is Rutherford?
300
I am a negatively charged subatomic particle.
What is an electron?
300
A verticle column in the periodic table
What is a group?
300
F, Cl, Br, I, At
What are the halogens?
300
the element represented by the symbol Na
What is sodium?
400
I suggested the electrons move in orbits around the nucleus.
Who is Bohr?
400
I have a mass of approximately 1/2000 of a proton.
What is an electron?
400
The majority of elements fall into this class.
What is a metal?
400
He, Ne, Ar, Kr, Xe, Rn
What are the noble gases?
400
the element represented by the symbol K
What is potassium?
500
Schrodinger described this model of the atom.
What is electron cloud model?
500
I am one of two subatomic particles found in the nucleus of an atom.
What is a proton or neutron?
500
the pattern of repeating properties in the periodic table
What is the periodic law?
500
Be, Mg, Ca, Sr, Ba, Ra
What are the alkaline earth metals?
500
the element represented by the symbol B
What is boron?
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