Atomic Symbols
Most Common Isotope
Valence Electrons
Electron Configuration
Lewis Structure
100
The atomic mass number of this element
What is 40?
100
The most common isotope of
What is Ne-20?
100
The number of valence electrons carbon has
What is 6?
100
The electron configuration of aluminum
What is 2,8,3?
100
The Lewis structure for chlorine
What is
200
The number of protons in this atom
What is 10?
200
The most common isotope for this element
What is Hg-201?
200
The number of valence electrons neon has
What is 8?
200
The electron configuration silicon
What is 2,8,4?
200
The Lewis Structure for sulfur
What is
300
The number of neutrons in this atom
What is 61?
300
the most common isotope of this element
What is Ca-40?
300
The number of valence electrons in boron
What is 5?
300
The electron configuration of fluorine?
What is 2,7?
300
The Lewis Structure of nitrogen
What is 
400
The number of electrons in a neutral charged atom of this element
What is 79?
400
The most common isotope for this element
What is C-12?
400
the number of valence electrons in oxygen
What is 6?
400
The electron configuration for Argon
What is 2,8,8?
400
The Lewis structure for potassium
What is
500
The number of neutrons in this atom
What is 125?
500
The most common isotope of this element
What is Li-7?
500
The number of valence electrons sodium has
What is 1
500
The electron configuration for phosphorous
What is 2,8,5?
500
The Lewis Structure for beryllium
What is 