Question:
The number of valence electrons present in an element with atomic number \(117\) is
The number of valence electrons present in an element with atomic number \(117\) is
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For main-group elements, the group number often indicates the number of valence electrons. Group \(17\) elements have \(7\) valence electrons.
Updated On: Jun 24, 2026
- \(7\)
- \(8\)
- \(6\)
- \(5\)
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The Correct Option is A
Solution and Explanation
Step 1: Identify the element with atomic number \(117\).
The element having atomic number \[ 117 \] is Tennessine (\(Ts\)).
It belongs to Group \(17\) of the periodic table.
Step 2: Recall the valence electrons of Group \(17\) elements.
All halogens in Group \(17\) have the outer electronic configuration: \[ ns^2 np^5 \] Therefore, the number of valence electrons is \[ 2+5=7 \]
Step 3: Final conclusion.
Hence, the number of valence electrons present is \[ \boxed{7} \]
The element having atomic number \[ 117 \] is Tennessine (\(Ts\)).
It belongs to Group \(17\) of the periodic table.
Step 2: Recall the valence electrons of Group \(17\) elements.
All halogens in Group \(17\) have the outer electronic configuration: \[ ns^2 np^5 \] Therefore, the number of valence electrons is \[ 2+5=7 \]
Step 3: Final conclusion.
Hence, the number of valence electrons present is \[ \boxed{7} \]
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