Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
49 views
in Physics by (51.7k points)
closed by

Find the first excitation potential of He+ion.

1 Answer

+1 vote
by (52.1k points)
selected by
 
Best answer

The energy of a hydrogen atom in the nth excited state is given by - 13.6/n2 eV

Hence the energy of a ionised helium atom would be given by

for first excited state, the transition is from n = 1 to n = 2 state. 

Now for n = 1

Hence the excitation energy of the H\(^+_e\) ion is –13.6 – (-54.4) = 40.8 eV

If V1 is the first excitation potential for H\(^+_e\)

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

...