LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
21.8k views
in Chemistry by (65.3k points)

Which element has

  • Two shells, both of which are completely filled with electrons?
  • The electronic configuration 2, 8, 2?
  • A total of three shells, with four electrons in its valence shell?
  • A total of two shells, with three electrons in its valence shell? 

1 Answer

0 votes
by (65.3k points)
 
Best answer
  • Two shells, both of which are completely filled with electrons?
    Answer: Ne (Neon)
  • The electronic configuration 2, 8, 2?
    Answer: Mg (Magnesium)
  • A total of three shells, with four electrons in its valence shell?
    Answer: Si (Silicon) (14): 2, 8, 4
  • A total of two shells, with three electrons in its valence shell? 
    Answer: B (Boron) (5): 2, 3

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...