Generally speaking, it would be 8 electrons, but there are many exceptions.
8 are traditionally needed in the valence shell.
Generally speaking, it would be 8 electrons, but there are many exceptions.
electrons jump energy levels becouse each level has a specific amount of energy needed inorder to be in that level. when an electron gets enough energy it jumps to the next level it can possible be in with that amount of energy.
Lithium has three electrons, two in the inner shell and a single one ouside that, so there are two energy levels. See the link below
Electrons in the outer most energy level is called "valence electrons." Groups are the columns of the periodic table. The more valence electrons (up to 8), the closer to the right. The number of electrons needed to make an atom stable is 8. (Minus Hydrogen and Helium, which only need 2 electrons to be stable.)
Electrons are bound inside an electrostatic potential well around the nucleus; ext. energy is needed for the electron to escape.
8 electrons
The ionization energy needed to remove the first two electrons from Magnesium atoms is relatively low because these electrons are in the outermost energy levels and experience less electron-electron repulsion, making them easier to remove compared to inner electrons. Additionally, Magnesium has a relatively small effective nuclear charge, which further reduces the attraction between the nucleus and the outer electrons, making them easier to remove.
CONCEALABLE CAMERAS: 29 (Enforcer) Needed on Hitman levels to get blackmail photos (energy needed: 609 minimum) BLACKMAIL PHOTOS: 403 (Hitman) 35 needed on Consigliere levels 184 needed on Boss levels for "Buy off Fed Agent" 184 needed on Boss levels for "Blackmail DA" (energy needed: 9,672) UNTRACEABLE CELL PHONES: 306 (Enforcer) 25 needed on Capo levels for "Flip A Snitch" 62 needed on Capo levels for "Dodge FBI trail" 35 needed on Consig levels for "Ransom kids" 184 needed on Underboss levels for "Order a hit" (energy needed: 6,426 minimum) ILLEGAL TRANSACTION RECORDS: 424 (Capo) 52 needed on Consig levels for "Fix the big game" 184 needed on Underboss levels for "Extort Corrupt Judge" 79 needed on Underboss levels for "Embezzle Funds" 109 needed on Boss levels for "Shake Down" (energy needed: 11,024 minimum) COMPUTER SET UP: 263 (Enforcer) 79 needed on Underboss levels for "Embezzle funds" 184 needed on Underboss levels for "Take over ID theft" (Enforcer) (energy needed: 5,523 minimum)
For example when the electron absorb energy.
The first energy level can take a maximum of two electrons.
One indicator is that electrons in atoms can only occupy certain discrete energy levels, as seen in the discrete lines of an atomic emission spectrum where electrons emit photons of specific energies when transitioning between energy levels. This quantization of energy levels is a key feature of the quantum mechanical description of electrons in atoms.