Remember that the orbitals are the places you will generally find the electrons as they spin around the nucleus. (2) These eighteen elements make up most of the matter in the Universe. (3) It's a lot easier to remember facts about 18 elements than over 100 elements. As we move past the first eighteen elements, you can start to learn about transition elements in the fourth period (row) of the periodic table. The transition metals have electron configurations that are a little different from the first eighteen.
Figure 1 â Work Breakdown Structure. The WBS Dictionary, in addition to expanding on the simple one line description of the WBS elements, connects the WBS to the Statement of Work (SOW). The WBS dictionary is usually a spreadsheet that lists the WBS, the WBS element name, a description of the work in that element at a minimum. In addition, the good dictionary will have a field that designates which SOW paragraph is covered by that WBS element.
The WBS should represent the work identified in the approved Project Scope Statement and serves as an early foundation for effective schedule development and cost estimating. Project managers typically will develop a WBS as a precursor to a detailed project schedule.