A doubly-ionized lithium atom Li++, which has 3 protons, ...

[leilurhhh]

A doubly-ionized lithium atom Li++, which has 3 protons, undergoes a transition from the n = 5 state to the n = 4 state.
 
  What is the wavelength of the photon which is emitted during this transition? (c = 3.00  108 m/s, h = 6.626  10-34 J  s, 1 eV = 1.60  10-19 J)
  A) 650 nm B) 550 nm C) 450 nm D) 350 nm E) 750 nm

Question 2

What is the ground state energy of the Li++ ion, which has atomic number 3?
 
  A) -61 eV
  B) -40.8 eV
  C) -1.51 eV
  D) -122 eV
  E) Li++ does not have a ground state.

[fauacakatahaias]

Answer to Question 1

C

Answer to Question 2

D

[leilurhhh]

Gracias!

[Joy Chen]

Excellent