Multiple Choice
Which of the following is not a correct association between a chemical property and its description?
1. Intro to General Chemistry
Chemical Properties
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Which of the following elements is incorrectly paired with its classification on the periodic table?
A
Iron - Transition Metal
B
Sodium - Alkali Metal
C
Chlorine - Alkaline Earth Metal
D
Helium - Noble Gas
Verified step by step guidance1
Identify the classification of each element based on its position in the periodic table.
Iron (Fe) is located in the d-block of the periodic table, which is where transition metals are found. Therefore, Iron is correctly classified as a Transition Metal.
Sodium (Na) is located in Group 1 of the periodic table, which contains the alkali metals. Therefore, Sodium is correctly classified as an Alkali Metal.
Chlorine (Cl) is located in Group 17 of the periodic table, which contains the halogens. Therefore, Chlorine is incorrectly classified as an Alkaline Earth Metal, as it should be classified as a Halogen.
Helium (He) is located in Group 18 of the periodic table, which contains the noble gases. Therefore, Helium is correctly classified as a Noble Gas.
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