Argon (Ar): (Ne) 3s2 3p6
O longhand notation
O noble-gas notation

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

One does not belong why? ice, gold ,wood ,diamond and table salt