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In the periodic table, what are the horizontal rows called?
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4. Atoms and Elements
Periodic Table: Group Names
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In the periodic table, what are the vertical columns called?
A
Rows
B
Periods
C
Groups (also called families)
D
Blocks
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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 'Blocks' refer to sections of the periodic table based on electron configurations, not columns or rows.
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