Which of the following pairs of atomic numbers represent the element belonging to the same group ?
2)12 and 21
3)14 and 31
4)13 and 31
: 491: 6 Previous Next
13 and 31
Suggest other answer Login to Discuss/suggest the answer...
Exam: Periodic Table QUESTIONS
Login to DiscussLogin
Recommended Learning for you
Close(X)
Subscribe here for free mock test on IAS PCS SSC and other competitive exam. Signup here to get SSC CGL Solution and main exam study material