The 3d subshell is completely filled in Arsenic. Therefore it has 10 electrons.
[Ar] 3d10 4p3 = there are 10 3d electrons
Zinc has ten 3d electrons.
Niobium (Nb) Because three 4d electrons = 3d^3
There are a maximum of 10 electrons in the 3d sub-level.
On the periodic chart, the element with 5 electrons in its 3d orbital can be quickly identified. Elements with partially filled d-orbitals are located in the middle section, the "transitional metals." 3d is the first d-orbital, so we look in the first row of the middle section. This section fills the orbital by one more electron per element, so the one with 5 electrons is the fifth from the left.... Manganese! Atomic number 25.
1s22s22p63s23p64s23d5
Sc is a 3d element. It has 21 protons and 21 electrons.
Zinc has ten 3d electrons.
First of all: telerium is not a correct name of an element.Most probably is meant:Tellurium, Te, a chemical element that has the symbol Te and atomic number 52 rather than:Terbium, Tb, a chemical element with the symbol Tb and atomic number 65.Occupied (sub)levels are:Te: [Kr] 4d10 5s2 5p4(or Tb: [Xe] 4f9 6s2 )
Niobium (Nb) Because three 4d electrons = 3d^3
3d10 Ten electrons is the maximum number of electron in 3d.
There are a maximum of 10 electrons in the 3d sub-level.
On the periodic chart, the element with 5 electrons in its 3d orbital can be quickly identified. Elements with partially filled d-orbitals are located in the middle section, the "transitional metals." 3d is the first d-orbital, so we look in the first row of the middle section. This section fills the orbital by one more electron per element, so the one with 5 electrons is the fifth from the left.... Manganese! Atomic number 25.
1s22s22p63s23p64s23d5
Lithium atoms have three electrons.
3d^6 Six electrons in the outer shell.
vanadium (V)
In actuality Mn has SEVEN valence electrons, not really 2 as might be predicted. The reason for this is that Mn is [Ar]3d5 4s2, and as a transition element, not only are the 4s electrons available for bonding, but so are those in the d orbital. So, the 5 electrons in 3d and the 2 electrons in 4s are all considered as valence electrons.