Elements Crossword
This printable crossword puzzle on the topic of Elements & Periodic Table has 15 clues. Answers range from 5 to 21 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
its a element in group one
the atomic number is 90
All atoms of this element contain 88 protons
This element does form a few compounds
chemical element with symbol O
the chemical symbol is np
atoms of this element contain 57 protons.
All atoms of this element contain 117 protons.
the atomic number is 58
a nonmetal with properties that are intermediate between the elements above and below in the periodic table
It is named after the German state of Hesse.
It is an extremely dangerous element
atomic number 59
the atomic mass is 144.2
promethium
