Periodic Table
Across
- 2. Unusually for metals, lithium, sodium and potassium do this on water
- 5. Argon, krypton and xenon are used in these bright things
- 9. These metals in the middle part of the periodic table usually form coloured compounds
- 12. The charge on halide ions such as chloride ions
- 14. Are you sure? Chlorine forms at this electrode during the electrolysis of concentrated sodium chloride solution
- 15. Chlorine does this to damp litmus paper
- 18. Alkaline metal compounds formed when group 1 elements react with water
Down
- 1. The common name for group 1
- 3. Chlorine is used to kill bacteria in these watery things
- 4. Salt-formers found in a group
- 6. Flammable gas produced when sodium reacts with water
- 7. Group7 elements are non-
- 8. A common name for concentrated sodium chloride solution
- 10. The group 0 gases are described as this because they are inert
- 11. The melting points of transition metals are this
- 13. The type of bonding in compounds of group 1 and group 7 elements
- 16. The physical state of bromine at room temperature
- 17. The colour of iodine vapour