Across
- 3. Elements and ____ are the two types of pure substances.
- 6. The ______ ______ metals are radioactive and mostly mad-made elements.
- 7. The neutral subatomic particle in an atom.
- 8. A column on the periodic table.
- 9. Another name for a group on the periodic table because they have similar properties.
- 11. This salt former is liquid at room temperature.
- 12. When two or more types of matter are mixed together.
- 15. A liquid at room temperature with the chemical symbol Hg.
- 18. The _____ metals conduct electricity and heat well, an example of these elements would be Iron and Copper.
- 21. This is the mass found on the periodic table, the average of all the masses.
- 22. Poor conductors of electricity and heat, typically dull and many are found as gasses.
- 24. First group of elements that are very reactive and can explode when exposed to water.
- 25. This is the first element in the alkaline earth metal family.
- 30. Very reactive metals, not found freely in nature and the second column on the periodic table.
- 31. The electron ____ is where all of the electrons of an atom are found.
- 32. This is the state of matter most of the elements are found in at room temperature.
Down
- 1. This element belongs in the other metals and has an atomic number of 13.
- 2. This is what the periodic table is organized by.
- 4. This is the first element on the periodic table.
- 5. This is the alkali metal with the highest mass.
- 10. Gasses that do not easily form compounds.
- 13. The positive subatomic particle in an atom.
- 14. All of these are found on the periodic table.
- 16. Have properties of both metals and non-metals.
- 17. Good conductors of heat and electricity are shiny, ductile and malleable.
- 19. Where the protons and neutrons are found in an atom.
- 20. Salt former elements that have elements that exist in all three states of matter.
- 23. The ____ number is what we get when we add the protons and neutrons together.
- 26. Mercury and Bromine are the two elements found in this state at room temperature.
- 27. The negative sub atomic particle of an atom.
- 28. A row on the periodic table.
- 29. This is the state of matter that the noble gasses are found in at room temperature.
