SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The horizontal rows on the periodic table are known as
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periods.
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atoms.
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groups or families.
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valence electrons.
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Explanation:
Detailed explanation-1: -The horizontal rows in a periodic table are called group.
Detailed explanation-2: -The horizontal rows in a periodic table are called group.
Detailed explanation-3: -The horizontal rows in the periodic table are periods, while the vertical rows are called groups. Was this answer helpful?
Detailed explanation-4: -The periodic table is organized into groups (vertical columns), periods (horizontal rows), and families (groups of elements that are similar). Elements in the same group have the same number of valence electrons. Meanwhile, elements in the same period have the same number of occupied electron shells.
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