Question 496
What is the ground state electronic configuration of Terbium (Tb, Z=65)?
Question 497
What is the ground state electronic configuration of Gadolinium (Gd, Z=64)?
Question 498
What is the ground state electronic configuration of Europium (Eu, Z=63)?
Question 499
What is the ground state electronic configuration of Thulium (Tm, Z=69)?
Question 500
What is the ground state electronic configuration of Erbium (Er, Z=68)?