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Which family on the periodic table is generally the most reactive (readily loses one electron to form a ion)?
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4. Atoms and Elements
Periodic Table: Group Names
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Which element would be expected to behave most like magnesium based on periodic table group trends?
A
Chlorine (Cl)
B
Sodium (Na)
C
Calcium (Ca)
D
Aluminum (Al)
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Identify the group (column) in the periodic table where magnesium (Mg) is located. Magnesium is in Group 2, which is known as the alkaline earth metals.
Recall that elements in the same group have similar chemical properties because they have the same number of valence electrons. Magnesium has 2 valence electrons.
Look at the options and determine which element is also in Group 2. Sodium (Na) is in Group 1, Chlorine (Cl) is in Group 17, Aluminum (Al) is in Group 13, and Calcium (Ca) is in Group 2.
Since calcium (Ca) is in the same group as magnesium, it will have similar chemical behavior due to having the same number of valence electrons and similar electron configurations.
Therefore, based on periodic table group trends, calcium (Ca) is expected to behave most like magnesium (Mg).
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