Nonmetals metalloids

C08-0026. Consult the table of first ionization energies in Appendix C and calculate the average values for the nonmetals, metalloids, and s-block elements. How does the trend in these averages relate to the ionic chemistry of these elements ... 

B Main group elements are in the A families, while transition elements are in the B families. Metals, nonmetals, metalloids, and noble gases are color coded in the periodic table inside the front cover. 

Examine the periodic table. What is the physical state of most metals Nonmetals Metalloids ... 

Although the general term carbide applies to the binary compounds of the element carbon, this term is used in systematic nomenclature only when carbon is the more electronegative of the two elements involved. Thus, C02 is called carbon dioxide and not oxygen carbide since oxygen is more electronegative than carbon. Although carbon forms binary compounds with most of the nonmetals, metalloids, and metals, only a few of the more common members of this class are considered here. 

Metalloids Intermediate between metals and nonmetals. Metalloids have physical and chemical properties in common with both. 

Princeton Community Middle School. Metals, Nonmetals Metalloids. Available online. URL http //web.buddyproject.org/ web017/web017/metals.html. Accessed on July 17,2007. 

Elements are classified as either metals, nonmetals, or metalloids. The stair-step line on the table separates metals from nonmetals. Metalloids border the stair-step line. 

Semi-metals or metalloids are a very small group of elements found in the periodic table of elements along the zig-zag line that distinguishes metals from non-metals and is drawn from between boron and aluminum to the border between polonium and astatine. Elements to the upper right of this line are nonmetals while metals are to the lower left. Together with metals and nonmetals, metalloids form one of the three categories of chemical elements as classified by ionization and bonding properties [1, 2]. 

An element along the "staircase" boundary between metals and nonmetals metalloids exhibit both metallic and nonmetallic properties. 

Metals Nonmetals Metalloids Atomic size Ionization energy... 

The most interesting point about the elements described in this chapter is the variety of properties that they exhibit. These six groups include elements that are nonmetals, metalloids, and metals, as well as elements that are solids, liquids, and gases at room temperature. 

Of the ten most abundant elements in the Earth s crust, seawater, and atmosphere, how many are metals nonmetals metalloids (Table 3.1)... 

The elements of group 4A show an interesting change in properties with increasing period. Give the name and chemical symbol of each element in the group, and label it as a nonmetal, metalloid, or metal. 

The p-block is formed of the groups 13-18 (the nonmetals, metalloids, and a few metals). The elements in the s-block and p-block are called representative elements. 

The elements on the periodic table can be classified as metals, nonmetals, metalloids, or noble gases. Metals tend to be shiny and have atoms that give up electrons. Metals are malleable and tend to be excellent conductors of heat and electricity. By nature, nonmetals do not conduct electricity and have atoms that do not naturally give up electrons however, they do tend to accept electrons. The metalloid elements are located along the heavy black stair-step line on the right-hand side of the periodic table. Boron, silicon, germanium, arsenic, antimony, tellurium, polonium, and astatine are classified as metalloids. 

MetaL nonmetaL metalloid, semimetal Metahic character Noble gases (family)... 

Notice that they are numbered from 1 to 18 from left to right. Each group contains elements with similar chemical properties. For example, the elements in Group 2 are beryllium, magnesium, calcium, strontium, barium, and radium. All of these elements are reactive metals with similar abilities to bond to other kinds of atoms. The two major categories of elements are metals and nonmetals. Metalloids have properties intermediate between those of metals and nonmetals. 

Metalloids tend to be semiconductors of electricity. That is, their ability to conduct electricity is intermediate between that of metals and that of nonmetals. Metalloids are used in the solid state circuitry found in desktop computers, digital watches, televisions, and radios. 

The elements can be classified as metals, nonmetals, metalloids, and noble gases. These classes occupy different areas of the periodic table. Metals tend to be shiny, malleable, and ductile and tend to be good conductors. Nonmetals tend to be brittle and tend to be poor conductors. 

Use the periodic table to write the names of the elements that have the following symbols, and identify each as a metal, nonmetal, metalloid, or noble gas. 

The properties of elements of the p-block vary greatly. At its right-hand end, the p-block includes all of the nonmetals except hydrogen and helium. All six of the metalloids (boron, silicon, germanium, arsenic, antimony, and tellurium) are also in the p-block. At the left-hand side and bottom of the block, there are eight p-block metals. The locations of the nonmetals, metalloids, and metals in the p-block are shown with distinctive colors in Figure 2.3. 

---