2025/ 2026 Chemistry Atoms First 2e Notes | OSX ISM Chapter 3-6, Full Study Guide with Solutions

OpenStax Chemistry: Atoms First 2e
3.6: The Periodic Table
Chemistry: Atoms First 2e
3: Electronic Structure and Periodic Properties of Elements
3.6: The Periodic Table
87. Using the periodic table, classify each of the following elements as a metal or a nonmetal,
and then further classify each as a main-group (representative) element, transition metal, or inner
transition metal:
(a) uranium
(b) bromine
(c) strontium
(d) neon
(e) gold
(f) americium
(g) rhodium
(h) sulfur
(i) carbon
(j) potassium
Solution
(a) metal, inner transition metal; (b) nonmetal, representative element; (c) metal, representative
element; (d) nonmetal, representative element; (e) metal, transition metal; (f) metal, inner
transition metal; (g) metal, transition metal; (h) nonmetal, representative element; (i) nonmetal,
representative element; (j) metal, representative element
88. Using the periodic table, classify each of the following elements as a metal or a nonmetal,
and then further classify each as a main-group (representative) element, transition metal, or inner
transition metal:
(a) cobalt
(b) europium
(c) iodine
(d) indium
(e) lithium
(f) oxygen
(g) cadmium
(h) terbium
(i) rhenium
Solution
(a) metal, transition metal; (b) metal, inner transition metal; (c) nonmetal, representative element;
(d) metal, representative element; (e) metal, representative element; (f) nonmetal, representative
element; (g) metal, representative element; (h) metal, representative element; (i) metal, inner
transition metal; (j) metal, transition metal
89. Using the periodic table, identify the lightest member of each of the following groups:
(a) noble gases
(b) alkaline earth metals
(c) alkali metals
(d) chalcogens
Solution
(a) He; (b) Be; (c) Li; (d) O
90. Using the periodic table, identify the heaviest member of each of the following groups:

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