THE HISTORY OF THE ATOM Crossword

Henri Bacqueral discovered the __________ of atoms' magnetism and radioactivity
Aristotle thought there was not a smallest part of ______ .
The ____ is the amount of matter in an object.
_____________ is a change in the velocity of an object, mass, or body.
A ________ is an element or compound.
Marie and Pierre Curie worked with mysteries of _________ and radioactivity.
An ____ is the smallest unit of an element.
The _______ is in the middle of the atom.
J.J. Thomas discovered the ______ model.
An _______ is a negatively charged part of an atom.
A ______ is a positively charged part of an atom.
Ernest Rutherford discovered the _______.
Robert Millikan was interested in J.J. Thomas and his _________.
A _____ is the energy level where the electrons are found.
___________ is the spontaneous disintegration of the nucleus.
An _______ is a pure substance that cannot be broken down into simpler substances by chemical reactions.
Neils Bohr changed the _____of electrons.
A ________ is a material formed by joining elements.
An ___ is an electrically charge particle (positive or negative).
Antonie Lavoiser put the first table of ________ together.