Periodic Table of Elements in Groups 1, 7 & 8 Crossword Puzzle
Download and print this Periodic Table of Elements in Groups 1, 7 & 8 crossword puzzle. Use a pencil or pen to complete the puzzle by filling in the blanks. The completed answers are included, so you can easily check your progress.
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QUESTIONS LIST:
- helium : the second lightest element
- neon : its gas is used for advertising signs
- argon : the atomic number 8
- krypton : has no stable isotopes
- xenon : an nonreactive gas
- radon : more than 100 times heavier than hydrogen
- fluorine : the most chemically reactive of all elements
- chlorine : its used to disinfect water
- bromine : used in agriculture and sanitation
- iodine : the atomic number 53
- astatine : the atomic number 85
- tennessine : a highly radioactive metal
- lithium : used to treat mental illnesses
- sodium : the chemical element (na)
- potassium : the atomic number 19
- rubidium : the second most reactive metal
- cesium : acts as a drilling fluid
- francium : the heaviest chemical element of group 1
- alkali metals : any of the six chemical elements that make up group 1
