Search results
Explanation: An element with both metallic and nonmetallic properties is called a metalloid. These elements, which include boron, silicon, germanium, arsenic, antimony, and tellurium, exhibit behavior that falls between metals and nonmetals. This classification of elements originates from the Periodic Table of Elements where they act as a sort ...
May 21, 2024 · Gypsum is a salt (a compound made of both metallic and non-metallic elements). What are the chemical and physical properties of selenium? Selenium is a nonmetal element with the atomic number 34.
6 days ago · The metalloid that has five valence electrons in the fourth electron shell is . arsenic. How does the number of valence electrons in atoms of metalloids explain why metalloids are semiconductors? They have three to six valence electrons, so they can lose or gain electrons. Study with Quizlet and memorize flashcards containing terms like Which ...
Jan 11, 2024 · The element that exhibits both metallic and nonmetallic properties is tellurium. Tellurium is a metalloid, which is an element that has properties intermediate between those of metals and nonmetals. It has a luster like metals but does not readily form simple cations, and it usually conducts electricity poorly, if at all, but can become a ...
Properties of Metals. Metals are elements that form positive ions by losing electrons during chemical reactions, except hydrogen. Thus, they are electropositive elements with low ionization energies. Most metals share the properties of being shiny, very dense, and having high melting points. Furthermore, they are ductile, malleable, and lustrous.
Question 6 Metals typically have the following physical properties EXCEPT: O conductivity of heat and electricity a lustrous appearance O the ability to change shape without breaking O tend to gain electrons to form negative ions Question 7 A few elements that exhibit both metallic and nonmetallic behavior are classed as O halogens metalloids alkali O chalcogens
Mineralogists have special terms to describe luster. One simple way to classify luster is based on whether the mineral is metallic or non-metallic. Minerals that are opaque and shiny, such as pyrite, have a metallic luster. Minerals such as quartz have a non-metallic luster. Different types of non-metallic luster are described in Table below.
