Classification Of Elements And Periodicity In Properties Ques 349

Question: Which of the following electronic configurations in the outermost shell is characteristic of alkali metals [Bihar CEE 1992]

Options:

A) $ (n-1),s^{2}p^{6},ns^{2}p^{1} $

B) $ (n-1),s^{2}p^{6}d^{10},ns^{1} $

C) $ (n-1),s^{2}p^{6},ns^{1} $

D) $ ns^{2}p^{6}d^{1} $

Show Answer

Answer:

Correct Answer: C

Solution:

Alkali metals have the configuration $ (n-1)s^{2}p^{6},ns^{1} $



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक