GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is an atomic period?
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Elements in the same horizontal row on the periodic table.
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Elements in the same vertical row on the periodic table.
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The time during school when you have to learn about atoms.
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A particle that has a positive charge that gives an element its identity.
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Explanation:
Detailed explanation-1: -The horizontal rows on the periodic table are called periods. All the members of a family of element have the same number of valence electrons and similar chemical properties. In the same period, electrons fill the same valence shell.
Detailed explanation-2: -The horizontal rows in the periodic table are periods, while the vertical rows are called groups.
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