Periodic Table at Starbase Crossword

Transition Metal in Period 4, with 26 protons
Group 13, Period 3; this material is used to make airplanes
An Element that has 1 proton
An Alkali Metal with 3 protons
We need this to breathe; a gas element with 8 protons
This gas is 78% of our air; a gas with 7 protons
This metal is used as a shield from radiation, as in x-ray rooms. It is an Other Metal with 82 protons
The element symbol of Xenon, a Noble Gas with 54 protons
This Noble Gas has 10 protons; it is used to light up signs
This Noble Gas is the name of Superman’s home planet
This Other Metal was created in Russia in 2003; it has 115 protons
Group 17, Period 3; this element is used to kill bacteria in water
This Noble Gas is used inside balloons and has 2 protons
This Non-Metal glows in the dark and has 15 protons
This Transition Metal is used in electrical wiring and has 29 protons
This Alkali Earth Metal is contained in our bones and teeth; it has 20 protons