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In the periodic table, what are the vertical columns called?
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4. Atoms and Elements
Periodic Table: Group Names
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Periodic Table: Group Names — How many vertical groups (columns) are there in the modern periodic table?
A
32
B
18
C
8
D
16
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Understand that the modern periodic table is organized into vertical columns called groups or families, which share similar chemical properties.
Recall that the groups are numbered from 1 to 18, starting from the leftmost column (alkali metals) to the rightmost column (noble gases).
Recognize that these 18 groups include main-group elements, transition metals, and inner transition metals arranged in specific columns.
Note that the number 32 might refer to the total number of columns if counting the lanthanides and actinides separately, but the standard group count is 18.
Conclude that the modern periodic table has 18 vertical groups (columns), each representing a family of elements with similar valence electron configurations.
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