Niobium (Nb) Because three 4d electrons = 3d^3
I am pretty sure its Pd (Palladium)
Gallium is the element has three electrons in energy level n = 4.
This chemical element is nitrogen.
5
[Kr]4d6 ion has 42 electrons. As it is a 3+ ion, the parent atom would have 45 electrons. This would make it Rhodium Rh.
I am pretty sure its Pd (Palladium)
The valence electrons fill in 4d orbital The electron configuration of yttrium is [Kr]4d15s2.
Gallium is the element has three electrons in energy level n = 4.
This chemical element is nitrogen.
Three
5
27
10 electrons.
[Kr]4d6 ion has 42 electrons. As it is a 3+ ion, the parent atom would have 45 electrons. This would make it Rhodium Rh.
since it is in period 5 it contains 4d and 3d levels which both hold 10 electrons each. so therefore I (53) has 20 d electrons
Any group 5 element
2s: 2 electrons 5p: 6 4f: 14 3d: 10 4d: 10