객관식
Which group of elements on the periodic table has properties of both metals and nonmetals?
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2. Atoms & Elements
Periodic Table: Classifications
Multiple Choice
Which of the following is a property that sodium (Na) and chlorine (Cl) have in common?
A
Both are elements found in the same period of the periodic table.
B
Both have the same number of valence electrons.
C
Both are nonmetals.
D
Both are alkali metals.
검증된 단계별 안내1
Identify the position of sodium (Na) and chlorine (Cl) on the periodic table. Sodium is in group 1 and chlorine is in group 17.
Determine the period (horizontal row) in which both elements are located. Both sodium and chlorine are in period 3.
Analyze the number of valence electrons for each element. Sodium has 1 valence electron, while chlorine has 7 valence electrons.
Classify each element by type: sodium is a metal (alkali metal), and chlorine is a nonmetal (halogen).
Compare the options given and conclude that the property they share is being elements in the same period of the periodic table.
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