객관식
To which periodic table group does argon (Ar) belong?
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4. Atoms and Elements
Periodic Table: Group Names
객관식
In the periodic table, what do we call the vertical columns?
A
Rows
B
Groups (also called families)
C
Periods
D
Orbitals
검증된 단계별 안내1
Understand that the periodic table is organized in two main directions: horizontally and vertically.
Recognize that the horizontal rows in the periodic table are called 'Periods'.
Identify that the vertical columns in the periodic table are called 'Groups' or 'Families'.
Know that elements within the same group share similar chemical properties because they have the same number of valence electrons.
Remember that 'Orbitals' refer to regions around an atom's nucleus where electrons are likely to be found, and are not used to describe columns or rows in the periodic table.
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