Multiple Choice
Which element would most likely have chemical properties similar to that of fluorine (F)?
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2. Atoms & Elements
Periodic Table: Group Names
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Why might two elements possess similar chemical properties?
A
They have similar atomic masses.
B
They are found in the same period of the periodic table.
C
They have the same number of protons in their nuclei.
D
They are located in the same group of the periodic table and have the same number of valence electrons.
Verified step by step guidance1
Understand that chemical properties of elements are primarily determined by their electron configuration, especially the number of valence electrons (electrons in the outermost shell).
Recall that elements in the same group (vertical column) of the periodic table have the same number of valence electrons, which leads to similar chemical behavior.
Recognize that atomic mass and position in the same period (horizontal row) do not guarantee similar chemical properties because valence electron count changes across a period.
Note that having the same number of protons (atomic number) means the elements are the same element, so this does not explain similarity between different elements.
Conclude that the key reason two elements have similar chemical properties is because they are in the same group and thus have the same number of valence electrons.
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