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What is the charge on the Cr ion in the ionic compound Cr_2O_3?
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2. Atoms & Elements
Ions
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Which of the following elements is most likely to form an anion?
A
Chlorine (Cl)
B
Aluminum (Al)
C
Magnesium (Mg)
D
Sodium (Na)
Guida verificata passo dopo passo1
Understand that anions are negatively charged ions formed when an atom gains electrons.
Recall that elements tend to form ions to achieve a stable electron configuration, often resembling the nearest noble gas.
Identify the group of each element: Aluminum (Al) is in group 13, Magnesium (Mg) in group 2, Sodium (Na) in group 1, and Chlorine (Cl) in group 17.
Recognize that elements in groups 1 and 2 tend to lose electrons to form cations, while elements in group 17 tend to gain electrons to form anions.
Conclude that Chlorine (Cl), being a halogen in group 17, is most likely to gain an electron and form an anion.
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