Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Periodic table three-dimensional

At least four series of periodates are known, interconnected in aqueous solutions by a complex series of equilibria involving deprotonation, dehydration and aggregation of the parent acid H5IO6 — cf. telluric acids (p. 782) and antimonic acids (p. 577) in the immediately preceding groups. Nomenclature is summarized in Table 17.24, though not all of the fully protonated acids have been isolated in the free state. The structural relationship between these acids, obtained mainly from X-ray studies on their salts, are shown in Fig. 17.24. H5IO6 itself (mp 128.5° decomp) consists of molecules of (HO)sIO linked into a three-dimensional array by O-H - O bonds (10 for each molecule, 260-278 pm). [Pg.872]

Figure 9. Fernando Dufmir s symmetrical and three-dimensional periodic table- (Photograph courtesy of... Figure 9. Fernando Dufmir s symmetrical and three-dimensional periodic table- (Photograph courtesy of...
Efcr odlc Round Tjble" (4 updite 3 the three-dimensional period table with a modem mderslanding of electrode waUgmalloos. foui pairs of wooden disks are arranged around e-csntrel axis, with each cfsk divided into bands repraseorirg electron orbitals. The disks rotate so students 111 discover relationships between the elements. [Pg.117]

Summary The difference between elements and compounds was discussed in the Basics chapter, and chemical reactions were discussed in the Reaction and Periodicity chapter. But what are the forces holding together a compound What is the difference in bonding between table salt and sugar What do these compounds look like in three-dimensional space ... [Pg.147]

S. A. Borman, Three-dimensional periodic table proposed. Chem. Eng. News January 1, 18-21 (1990). [Pg.48]

The natural mathematical setting for any quantum mechanical problem is a complex scalar product space, dehned in Dehnition 3.2. The primary complex scalar product space used in the study of the motion of a particle in three-space is called (R ), pronounced ell-two-of-are-three. Our analysis of the hydrogen atom (and hence the periodic table) will require a few other complex scalar product spaces as well. Also, the representation theory we will introduce and use depends on the abstract nohon of a complex scalar product space. In this chapter we introduce the complex vector space dehne complex scalar products, discuss and exploit analogies between complex scalar products and the familiar Euclidean dot product and do some of the analysis necessary to apply these analogies to inhnite-dimensional complex scalar product spaces. [Pg.77]

The ion microprobe mass analyzer s unique features permit three dimensional microanalysis of all elements in the periodic table and in... [Pg.867]

FIGURE 6.4 A three- dimensional display showing how ionization energies increase from left to right across a row and decrease from top to bottom down a group of the periodic table. The elements at the lower left therefore have the smallest E values, and the elements at the upper right have the largest. [Pg.206]

Students will construct a work of art based on a three-dimensional periodic table and using the principles of good composition. [Pg.179]

Cut a periodic table into portions appropriate for constructing a three-dimensional table. [Pg.179]

Consider making a mobile three-dimensional periodic table. (See Activity 5.6, p. 225.) Remember that families and rows must be kept intact. To construct a balanced mobile, it is easier to start at the lowest section. Add periodic table sections and balance the section. Then work toward the top. Make the periodic table mobile useful. An observer should be able to locate an element and know its physical and chemical properties. [Pg.179]

To decrease the length of the table, the inner transition metals of the traditional periodic table should be cut out of their positions according to increasing atomic number. Include the inner transition metals in the main body of the three-dimensional table. [Pg.179]

One approach to constructing a three-dimensional periodic table is to arrange the elements by increasing atomic number in a spiral, where families remain in a vertical relationship. Inner transition metals will be included in the main body of this three-dimensional periodic table. [Pg.179]

Display the three-dimensional periodic table in a prominent location. [Pg.180]

Using the three-dimensional table, explain why it is called a periodic table. [Pg.180]

Activity 4.4 Construction of a Three-Dimensional Periodic Table... [Pg.197]

Mainly linear. If the periodic table is transformed into a spiral sculpture, it would be mainly solid. If a mobile periodic table is created, a linear, three-dimensional work of art would result. Famous artworks that resemble a mobile periodic table are the Alexander Calder mobiles. A good example is Untitled at the National Gallery of Art in Washington, D.C. Two red metal pieces represent the s elements, and six black metal pieces represent the p elements. [Pg.197]

The greatest advantage of a three-dimensional periodic table is the correct placement of the f elements. In addition, a three-dimensional periodic table is compact and easy to read. A disadvantage of the spiral three-dimensional periodic table is the location of the rows. Since the spiral is continuous, numbers are needed to identify the rows. Also, the elements in a spiral periodic table must be rotated in order see all of them. [Pg.197]

Whether the periodic table is two- or three -dimensional, physical and chemical properties of the elements repeat (i.e., recur periodically) as one looks across a row or down a column. [Pg.197]

The three-dimensional periodic table can be a solid spiral sculpture or a functional mobile. The families or rows provide ideal components for an attractive mobile. [Pg.197]

Other activities have been revised. In Activity 1.8, Create Your Own Atom, students create a two-dimensional drawing of an atomic theory. In addition, classmates have to guess the theory and critique the drawings as works of art. In Activity 4.4, Construction of a Three-dimensional Periodic Table, students are referred to mobile making for their periodic table construction. Many activities have changes that clarify the activity and add additional approaches to achieving the activity objectives. [Pg.410]


See other pages where Periodic table three-dimensional is mentioned: [Pg.540]    [Pg.469]    [Pg.39]    [Pg.128]    [Pg.103]    [Pg.101]    [Pg.718]    [Pg.367]    [Pg.290]    [Pg.69]    [Pg.310]    [Pg.36]    [Pg.1]    [Pg.137]    [Pg.64]    [Pg.469]    [Pg.133]    [Pg.167]    [Pg.101]    [Pg.385]    [Pg.205]    [Pg.584]    [Pg.833]    [Pg.45]    [Pg.179]    [Pg.117]   


SEARCH



© 2024 chempedia.info