Multiple Choice
In the periodic table, what is the common group name for Group 18 elements?
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4. Atoms and Elements
Periodic Table: Group Names
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Which of the following elements is classified as a noble gas on the periodic table?
A
Magnesium (Mg)
B
Chlorine (Cl)
C
Neon (Ne)
D
Sodium (Na)
Verified step by step guidance1
Understand that noble gases are elements found in Group 18 of the periodic table, known for their full outer electron shells and low reactivity.
Recall the position of each element in the periodic table: Magnesium (Mg) is in Group 2, Chlorine (Cl) is in Group 17, Neon (Ne) is in Group 18, and Sodium (Na) is in Group 1.
Identify that the noble gases include elements like Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn).
Compare the given elements to the noble gases group and recognize that Neon (Ne) is the only element listed that belongs to Group 18.
Conclude that Neon (Ne) is classified as a noble gas because it has a complete valence electron shell, making it chemically inert compared to the other elements listed.
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