Classification Of Elements And Periodicity In Properties Question 301
Question: An element has electronic configuration $ 1s^{2}2s^{2}2p^{6}3s^{2}3p^{4} $ . Predict their period, group and block [CPMT 2000]
Options:
A) Period = 3rd, block = p, group = 16
B) Period = 5th, block = s, group = 1
C) Period = 3rd, block = p, group = 10
D) Period = 4th, block = d, group = 12
Show Answer
Answer:
Correct Answer: A
Solution:
By obserbing principal quantum number (n), Orbital $ (s,p,d,f) $ and equating no. of $ {{e}^{-}} $ ’s we are able to find the period, block and group of element in periodic table.
BETA
