객관식
Which of the following elements is considered the most reactive on the periodic table?
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2. Atoms & Elements
Periodic Table: Group Names
객관식
The columns of the periodic table of elements are sometimes referred to as what?
A
Blocks
B
Families
C
Periods
D
Groups
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검증된 단계별 안내1
Understand that the periodic table is organized both horizontally and vertically to classify elements based on their properties.
Recognize that the horizontal rows of the periodic table are called 'Periods', which represent elements with increasing atomic numbers.
Know that the vertical columns of the periodic table are called 'Groups' or 'Families', which contain elements with similar chemical properties.
Note that 'Blocks' refer to sections of the periodic table based on electron configurations (s-block, p-block, d-block, f-block), not columns.
Therefore, the columns of the periodic table are correctly referred to as 'Groups'.
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