a. Classify the following elements as metals or nonmetals.
b. The distinction between metals and nonmetals is really not a clear one. Some elements, called metalloids, are intermediate in their properties. Which of these elements would you reclassify as metalloids? What other elements in the periodic table would you expect to be metalloids?
Answer to relevant Questionsa. List the noble gas elements. Which of the noble gases has only radioactive isotopes? (This situation is indicated on most periodic tables by parentheses around the mass of the element. See inside front cover.) b. Which ...Write the atomic symbol (A ZX) for each of the isotopes described below. a. Number of protons = 27, number of neutrons = 31 b. The isotope of boron with mass number 10 c. Z = 12, A = 23 d. Atomic number 53, number of ...The compounds AlCl3, CrCl3, and ICl3 have similar formulas, yet each follows a different set of rules to name it. Name these compounds, and then compare and contrast the nomenclature rules used in each case. The common names and formulas for several substances are given below. What are the systematic names for these substances? a. Sugar of lead Pb(C2H3O2)2 b. Blue vitriol CuSO4 c. Quicklime CaO d. Epsom salts MgSO4 e. Milk of ...Balance the following equations by the half- reaction method. a. Fe(s) + HCl(aq) → HFeCl4(aq) + H2(g)
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