This printable crossword puzzle on the topic of Elements & Periodic Table has 20 clues. Answers range from 3 to 10 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
The number of electrons is equal to the number of _______
The # in the upper left side of the element symbol stands for _______ number
Atoms are most stable when they have a Proton to _______ ratio of 1:1
Weighted average of all isotopes of an element
Fundamental building block of matter
All atoms of the same element have the same # of _____
Abbreviation for atomic mass unit
Protons have a ______ charge
Neutrons have a _____ charge
Electrons have a _____ charge
______ are outside the nucleus
Protons and neutrons are
Mass of an atom is located in the _____
Atomic ____ tells you how many protons you have
If you change the # of electrons the particle is an _____
Mass # is always a _______ number
Atom that contains same # Protons but different # of neutrons is an
17 is the atomic number of _____
32.065 is the atomic mass of _____
24.305 is the atomic mass of ______