Structure of the Atom Crossword
This printable crossword puzzle on the topic of Elements & Periodic Table has 16 clues. Answers range from 3 to 15 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
the greek word for invisible
A pure substance made up of two or more elements chemically combined
_________ model represented a blueberry muffin / chocolate chip cookie
Pure substances are unevenly distributed throughout the mixture ; you can see the different parts
Protons have a ________ charge
The unit for atomic mass
the center part of the atom
in an atom the number of ______________ equals the number of electrons
believed the atom was a solid , dense structure
________ created a periodic table in the 1860 's where the elements were ordered by their atomic masses
A pure substance that cannot be broken down into any other substance by physical or chemical means
all elements are made of _____________
the _____________ is the number of protons and electrons in an element
Created his atomic model in 1814
atoms are so ________ we cannot see them
The particle of an atom that is neutral
