NEET Chemistry Periodic Table MCQ Question
How many elements are present in the 5th period of the Periodic Table, and why can this number of elements be accommodated?
18, because the available orbitals can hold a total of 18 electrons.
32, because the 5th period includes both d- and f-block elements.
8, because it has only s and p orbitals.
10, because it includes only s and d orbitals.
Correct Answer
Detailed Explanation
The 5th period has 18 elements because it includes 5s, 4d, and 5p orbitals, which can accommodate a total of 18 electrons.
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