Periodic Table Crossword Puzzle

This printable crossword puzzle on the topic of Elements & Periodic Table has 20 clues. Answers range from 3 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Description

An element that is most reactive and toxic?
A characteristic of Group 1 elements? (2 words)
How many valence electrons are in Group 17?
Atomic number 18?
The direction that the families go?
Au?
One thing that the Alkali metals react to?
Father of the Periodic Table?
If there is an unstable amount of neutrons and protons what would be around the mass? (2 words)
Number of Elements? (3 Words)
Halogens and Noble gases are?
Alkali and Alkaline?
A Halogen which kills germs?
K?
How many valence electrons are in Be?
Element that glows?
How many elements are metalloids?
Atomic number 87?
Which element has an atomic mass of 118.71
Which element has an atomic mass of 294?

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