Structure of a Atom Crossword
This printable crossword puzzle on the topic of Elements & Periodic Table has 20 clues. Answers range from 4 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
The particles that make up protons and neutrons.
The samllest unit of an element
The sum of the number of neutrons and protons in an atomic nucleus
A very small piece of something
A positively charged subatomic particle.
The man who discovered the nucleus of an atom.
A term that means it is smaller than atom.
The term given to atoms of the same element that have different numbers of neutrons.
The man who discovered electron energy levels.
Unit of mass for expressing masses of atoms or molecules
A theory of the structure of the atom
A subatomic particle with neutral charge
The experiment conducted by Ernest Rutherford to discover the nucleus of an atom.
A negatively charged subatomic particle.
A form of matter that cannot be separated into simpler substances by ordinary chemical methods.
The number of protons and electron in an atom.
The center of an atom.
The man who discovered the electron.
The total number of protons and neutrons in the nucleus of an atom.
Empty space around the nucleus of an atom where electrons travel
