Lithium be cut with a knife. When cut, it possesses a silvery-white color that quickly changes to gray as it oxidizes to lithium oxide. While it has one of the lowest melting points among all metals (180 °C), it has the highest melting and boiling points of the alkali metals. Lithium has a very low density (0.534 g/cm), comparable with pine wood. It is the least dense of all elements that are solids at room temperature; the next lightest solid element (potassium, at 0.862 g/cm) is more than 60% denser. Furthermore, apart from helium and hydrogen, it is less dense than
Extraordinary assumptions and hypothetical conditions an appraiser identify specific assignment elements in the planning of an appraisal assignment and gather and analyze information about those elements, including assignment conditions, which include assumptions, extraordinary assumptions, hypothetical conditions, and hypothetical conditions. Additionally, all USPAP standards dealing with the development of appraisals, consulting, or mass appraisal specifically require that any extraordinary assumptions and any hypothetical conditions necessary in the assignment be identified in the course of formulating the appraisal problem and planning the scope of work. Under USPAP, an appraisal may be predicated on extraordinary assumptions only under certain conditions, specifically Similarly, an appraisal may also be predicated