Sc is a 3d element. It has 21 protons and 21 electrons.
Scandium (Sc) has an atomic number of 21, which means it has 21 electrons. Its electron configuration is [Ar] 3d¹ 4s². In this configuration, there is one unpaired electron in the 3d subshell, as the 4s subshell is fully paired. Therefore, scandium has one unpaired electron.
Two electrons can occupy the 2s subshell, and 8 electrons can occupy the 3d subshell.
I believe 4s2 is the distinguishing (last) electron
Cobalt (Co) has 7 electrons in its 3d subshell.
Sc is a 3d element. It has 21 protons and 21 electrons.
There are three unpaired electrons in the ground state of a scandium atom (Sc). This is because scandium has an atomic number of 21, with an electron configuration of [Ar] 3d^1 4s^2, where the 3d orbital has one unpaired electron.
There are a maximum of 10 electrons in the 3d sub-level.
3d10 Ten electrons is the maximum number of electron in 3d.
In the atom of Zinc (Zn), there are 10 electrons. Out of these 10 electrons, there are 0 electrons in the 3d orbital. Zn has a configuration of [Ar] 3d10 4s2.
There are 3d^10 electrons in arsenic, as it is located in the 4th period of the periodic table.
3d^6 Six electrons in the outer shell.
One Mn atom contains 5 electrons in it's 3d subshell, all of which are unpaired.
Two electrons can occupy the 2s subshell, and 8 electrons can occupy the 3d subshell.
The 3d sub-level has 5 orbitals, and therefore space for a total of 10 electrons. Excluding certain hyper-valent bonding scenarios, the first element with electrons to occupy the 3d sub-level is scandium (Sc).
Potassium (K) is atomic number 19. It has 19 electrons.1s2 2s2 2p6 3s2 3p6 4s1 so it has ZERO 3d electrons. The 3d doesn't receive electrons until you reach scandium (atomic number 21).
Copper (Cu) has one 3d electron.