a. Classify the following elements as metals or nonmetals:
Mg, Si, Rn, Ti, Ge, Eu, Au, B, Am, Bi, At, Br
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?
a. Classify the following elements as metals or nonmetals:
Mg, Si, Rn, Ti, Ge, Eu, Au, B, Am, Bi, At, Br
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?
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Related questions
Give It Some Thought 6.16
Valence electron configurations of the elements.
Part A
The elements Ni, Pd, and Pt are all in the same group. By examining the electron configurations for these elements in the following figure, what can you conclude about the relative energies of the nd and (n+1)s orbitals for this group?
The elements Ni, Pd, and Pt are all in the same group. By examining the electron configurations for these elements in the following figure, what can you conclude about the relative energies of the and orbitals for this group?
| nd > (n+1)s |
| nd < (n+1)s |
| nd = (n+1)s |
| It is impossible to conclude. |