- #1
Ecniv
- 2
- 0
i) What is the energy required to singly ionise a ground state Helium atom into the first excited state of the helium ion?
ii) What is the energy required to excite a ground state helium atom into the first excited state of neutral helium?
iii) What is the energy required to doubly excite a ground state helium atom into the first doubly excited state of neutral helium?
ii) What is the energy required to excite a ground state helium atom into the first excited state of neutral helium?
iii) What is the energy required to doubly excite a ground state helium atom into the first doubly excited state of neutral helium?