8. Other than the first shell, all shells have this limit (with the exception of transition metals but those have their own rules).
The number of electrons in the orbitals are as follows:Shell 1: 2Shell 2: 8Shell 3: 18Shell 4: 18Shell 5: 8
2 electrons
Valence electrons are placed in the outermost shell of electrons.
In the second energy level, eight electrons are allowed at most.
The electrons placed near the nucleus.
How many coulombs of electrons go through it each second. A coulomb is 6.23X10^18 electrons.
They are placed in the seventh electron shell.
Technetium has 43 electrons placed on five electron shells.
1,835
The reason it can be placed in group II is because it has 2 electrons in its outside shell (also its only shell) and the groups represent how many electrons in the elements outside shell, the reason it is normally placed in group 8 or 0 is because the first shell has a maximum of 2 electrons and all elements that have a full outside shell are placed in group 8/0 and can't normally react.
Electrons in the plutonium atom are placed in 7 energy levels.
Ambot