Electron Configuration
Periodic Table
Chemical Formulas
Scientists
100
The electron configuration of Nitrogen.
What is 1s22s22p3?
100
The columns on the Periodic Table.
What are periods?
100
The chemical formula for water.
What is H2O?
100
The inventor of this method of electron diagram. 
Who is Niels Bohr?
200
The Bohr model of Sodium.
200
The rows on the Periodic Table.
What are Groups?
200
Chemical formula for sodium chloride.
NaCl
200
The man who made the periodic table.
Who is Dmitri Mendeleev?
300
Very last energy level at the bottom of the periodic table.
What is 5f?
300
The number of families on the periodic table.
What is 18?
300
Bond gallium with a monatomic anion.
What is GaAs, GaP, GaN?
300
The man who made this type of valence electron modeling. 
Who is Gilbert Lewis?
400
All (letter) energy levels on the periodic table.
What is s, p, d, and f?
400
An element noble gases bond with.
What is they do not bond?
400
How substances bond.
What are valence electrons?
400
A man who studied the periodicity of elements.
Who is John Newlands?
500
The abbreviated electron configuration of Cerium.
What is [Xe] 4f¹ 5d¹ 6s²?
500
Last energy level on the periodic table.
What is f?
500
The number of bonds Nitrogen can make.
What is 3?
500
A man who developed the first physical periodic table of elements.
Who is Julius Lothar Meyer?