Q.
Assertion (A) The horizontal rows in the periodic table are called periods or Mendeleev's series.Reason (R) Elements having similar outer electronic configurations in their atoms are arranged in groups/families.
see full answer
Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!
Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya
a
Both A and R are correct; R is the correct explanation of A.
b
Both A and R are correct; and R is not the correct explanation of A.
c
A is correct; R is incorrect
d
R is correct; A is incorrect
answer is B.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
Elements are arranged in horizontal rows are called periods (Mendeleev's series) and having similar outer electronic configuration in their atoms are arranged in vertical columns known as groups or families.
Watch 3-min video & get full concept clarity