References
- Ebbing , D. 1996 . General chemistry, , 5th ed. , Boston : Houghton Mifflin Company .
- Gabel , D. L. , Casavant , D. P. and Giese , P. A. 1995 . “ Nature of matter ” . In Powerful ideas in physical science: A model course , College Park , Md. : American Association of Physics Teachers .
- Weast , R. C. , Lide , D. R. , Astle , M. J. and Beyer , W. H. 1974 . Handbook of chemistry and physics, , 70th ed. , Boca Raton , Fla. : CRC Press .