SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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electrons
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occupied energy levels or shells
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electrons in the highest occupied energy level or outer shell
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None of the above
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Detailed explanation-1: -Elements belonging to the same period have the same number of shells. Example: Every element in the first period (top row) has one orbital for its electrons. All the elements in the second period (the second row) have two orbitals for their electrons.
Detailed explanation-2: -A period in the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells.
Detailed explanation-3: -Elements in the same group have the same number of valence electrons and this gives them similar chemical properties. Elements in the same period have the same number of occupied principle energy levels (also called electron shells).
Detailed explanation-4: -All of the elements in a period have the same number of atomic orbitals. For example, every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons. As you move down the table, every row adds an orbital.
Detailed explanation-5: -ll of the elements in a period have the same number of atomic orbitals. In other words they have the same number of valence electrons.