Search any question & find its solution
Question:
Answered & Verified by Expert
The number of elements present in the fourth period is
Options:
Solution:
2854 Upvotes
Verified Answer
The correct answer is:
$18$
For 4th period, $n=4$.
Orbitals being filled $=4 s, 3 d, 4 p$
Number of elements in the period $=2,10,6=18$
Orbitals being filled $=4 s, 3 d, 4 p$
Number of elements in the period $=2,10,6=18$
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.