Multiple Choice
Which element in Group 2 (alkaline earth metals) is the most reactive under typical conditions?
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4. Atoms and Elements
Periodic Table: Group Names
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Periodic Table: Group Names — Which element is most similar to calcium (Ca) in its chemical properties?
A
Magnesium (Mg)
B
Sodium (Na)
C
Aluminum (Al)
D
Chlorine (Cl)
Verified step by step guidance1
Understand that elements in the same group (vertical column) of the periodic table have similar chemical properties because they have the same number of valence electrons.
Identify the group to which calcium (Ca) belongs. Calcium is in Group 2, also known as the alkaline earth metals.
Look for the element among the options that is also in Group 2, since elements in this group share similar chemical behavior.
Check the options: Magnesium (Mg) is in Group 2, Sodium (Na) is in Group 1, Aluminum (Al) is in Group 13, and Chlorine (Cl) is in Group 17.
Conclude that Magnesium (Mg), being in the same group as Calcium (Ca), will have the most similar chemical properties.
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