6s2 + 40s - 60 = 2(3s2 + 20s - 30)
[Xe] Normally the electronic configuration for Barium would be [Xe] 6s2, but since you want it for Ba2+, you're missing two electrons. You get rid of the 6s2 and get [Xe].
The noble gas electron configuration for barium is [Xe] 6s2.
The electron configuration of neodymium (Nd) is [Xe] 4f4 6s2.
The electron configuration for neutral Barium is [Xe] 6s2. Barium plus 2 means it has lost 2 electrons, so the electron configuration for Barium plus 2 would be [Xe].
Europium
Barium (Ba)
the long hand configuration of Ta (Tantalum, Atomic # 73) is: (be patient, its LONG) 1s2 2w2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d3 *this is including the Aufbau Principle. Save
The GCF is s.
Electronic configuration of hafnium: [Xe].4f14.5d2.6s2 And in simpler form 2, 8, 18, 32, 10, 2
Barium (Ba) is the alkaline earth metal with an electron configuration that ends in 6s2. Its full electron configuration is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2.
The noble gas configuration of europium is [Xe] 4f7 6s2. Europium typically forms the Eu2+ ion, losing its 6s2 electrons to achieve a stable octet configuration like xenon.