My Crossword Maker Logo
Powered by BrightSprout
Save Status:
or to save your progress. The page will not refresh.
Controls:
SPACEBAR SWITCHES TYPING DIRECTION
Answer Key:
Edit a Copy:
Make Your Own:
Crossword Word Search Worksheet
Rate This Puzzle:
Log in or sign up to rate this puzzle.

Electrons

Across
The number of protons plus the number of neutrons in the nucleus.
A particle with an electric charge(-e) found inside and outside the nucleus.
It is impossible to know variables precisely in the quantum world.
The theory that describes matter and energy at a very small (atomic) sizes.
An instrument that separates light into a spectrum.
A nucleus is radio active if it is spontaneously breaks up, emitting particles 0r energy in the process.
A particle found inside the nucleus with mass similar to the proton but with zero electric charge.
Down
A bright, colored line in the spectroscope.
The number of protons in the nucleus of an atom
The smallest unit of electric charge that is possible in ordinary matter.
A very small piece of something
The core at the center of an Atom's mass and all of its positive charge.
One of the discrete allowed energies for electrons in an Atom.
Atoms of the same element that have different numbers of neutrons in the nucleus.