SCI
Electrons in the 1st energy level
What is two electrons?
Inventor of the telephone
What is Alexander Graham Bell?
Boomtowns
What is towns close to railroads?
The maximum electrons beyond the first 20 in the periodic table
What is 18?
Inventor of the aircraft
What is the Wright Brothers?
Electron shell of Calcium
What is 2-8-8-2?
Inventor of the Morse Code
What is Samuel Morse?
Inventor of the Ford
What is Henry Ford?