Multiple Choice
Which of the following best explains why elements on the periodic table are arranged in groups and periods?
2. Atoms & Elements
Periodic Table: Group Names
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Which of the following elements would have physical and chemical properties most similar to chlorine?
A
Bromine
B
Oxygen
C
Sodium
D
Fluorine
Verified step by step guidance1
Understand that elements in the same group (vertical column) of the periodic table have similar physical and chemical properties because they have the same number of valence electrons.
Identify the group of chlorine in the periodic table. Chlorine is in Group 17, which is the halogen group.
Look for the elements listed in the problem and determine which ones are in the same group as chlorine. Bromine and fluorine are halogens, while oxygen and sodium are not.
Since bromine is directly below chlorine in Group 17, it shares more similar properties with chlorine compared to fluorine, which is above chlorine, or the other elements in different groups.
Conclude that bromine would have physical and chemical properties most similar to chlorine because they are in the same group and have similar electron configurations.
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