Across
- 2. mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume.
- 3. a column of elements in the periodic table of the chemical elements.
- 7. a group in the periodic table consisting of five or six chemically related elements: fluorine, chlorine, bromine, iodine (I), and astatine.
- 8. any property that is measurable, whose value describes a state of a physical system.
- 11. property of a material that fractures when subjected to stress but has a little tendency to deform before rupture.
- 12. a group of elements with similar chemical properties.
- 14. degree to which a specified material conducts electricity
- 16. material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well.
- 19. property of a metal's ability to be distorted below compression.
- 21. elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure.
- 23. an element whose atom has a partially filled d sub-shell, or which can give rise to cations with an incomplete d sub-shell
- 25. any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.
Down
- 1. the appearance of a mineral surface in terms of its light-reflective qualities.
- 4. theory that main-group elements tend to bond in such a way that each atom has eight electrons in its valence shell
- 5. negatively charged ion, i.e. one that would be attracted to the anode
- 6. nonmetal is a type of chemical element generally characterized by low density, low strength, and a tendency to form acidic compounds.
- 9. All elements in a row have the same number of electron shells.
- 10. matter is one of the distinct forms in which matter can exist.
- 13. very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides.
- 14. as a result of light interacting with our eyes
- 15. the ability of a material to be drawn or plastically deformed without fracture
- 17. makes it difficult for electrons to move to the conduction band where they can flow and create an electrical current.
- 18. make up a class of chemical elements with similar properties; under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity.
- 20. element whose properties are intermediate between those of metals and solid nonmetals or semiconductors.
- 22. an atom or molecule with a net electrical charge
- 24. atom or group of atoms that bears a positive electric charge.