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Unformatted text preview: Properties intermediate between the metals and nonmetals. Silicon for example appears lustrous, but is not malleable or ductile (it is brittle- a characteristic of some nonmetals). It is a much poorer conductor of heat and electricity than the metals. Metalloids are useful in the semiconductor industry. Trends in Metallic and Nonmetallic Character Metallic character is strongest for the elements in the leftmost part of the periodic table, and tends to decrease as we move to the right in any period (nonmetallic character increases with increasing ionization values) Within any group of elements (columns), the metallic character increases from top to bottom (the ionization values generally decrease as we move down a group). This general trend is not necessarily observed with the transition metals ....
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