This printable crossword puzzle on the topic of Elements & Periodic Table has 16 clues. Answers range from 2 to 9 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
There are of these in Carbon Dioxide (CO2)
Has the atomic number of seven
The element between Potassium and Scandium
The nucleus contains 14 protons
The simplest element
This element makes diamonds and the graphite in your pencil
A green gas that killed many soldiers in World War 1
This metal has 13 protons, 14 neutrons and is used to make aircraft
A key metal in the formation of Haemoglobin, the substance in red blood cells that carries oxygen
Pennywise the clown used balloons filled with this to float away
If n=8, this element has 2n protons and a mass of 4n
The ??? contains neutrons and protons
These orbit the dense central nucleus in shells
Has an electronic configuration of 2,8,1
This element is in period 2, group 3
The chemical symbol for Argon