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A horizontal row of blocks in the periodic table is called a(n)
period
family
octet
group
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period
Explanation: In the periodic table a horizontal row is called a period. A vertical column is called a group (or family). An octet refers to eight electrons in an outer shell.
Explanation: In the periodic table a horizontal row is called a period. A vertical column is called a group (or family). An octet refers to eight electrons in an outer shell.
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