It's called ionization energy. It can be defined as being the energy required to remove the outermost electron from a gaseous atom. A "gaseous atom" means an atom that is all by itself, not hooked up to others in a solid or a liquid.
dl.clackamas.cc.or.us/ch104-07/ionization_energy.htm dl.clackamas.cc.or.us/ch104-07/ionization_energy.htm
Background Reading for Ionization Energy: ... As stated in earlier reading, ionization energies (IE) have to do with things called ions. Ions are atoms which have gained or lost electrons. The ionization energy is the amount of energy it takes to detach one electron from a neutral atom.
www.shodor.org/chemviz/ionization/students/background.h... www.shodor.org/chemviz/ionization/students/background.html
The ionization energy or ionization potential is the energy necessary to remove an electron from the neutral atom. It is a minimum for the alkali metals which have a single electron outside a closed shell. It generally increases across a row on the periodic maximum for the noble gases which have closed shells.
hyperphysics.phy-astr.gsu.edu/hbase/chemical/ionize.htm... hyperphysics.phy-astr.gsu.edu/hbase/chemical/ionize.html
The First Ionization Energy Patterns In First Ionization Energies ... The First Ionization Energy ... The process by which the first ionization energy of hydrogen is measured would be represented by the following equation.
chemed.chem.purdue.edu/genchem/topicreview/bp/ch7/ie_ea... chemed.chem.purdue.edu/genchem/topicreview/bp/ch7/ie_ea.html
Energy required to remove an electron from a specific atom. Search the Dictionary © chemicool.com Tools | About | Forum | Contact | Privacy | Science network | Biology Search Search...
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The minimum energy required to remove an electron from an isolated molecular entity (in its vibrational ground state) in the gaseous phase. If the resulting molecular entity is considered to be in its vibrational ground state, one refers to the energy as the "adiabatic ionization energy".
www.chemicool.com/definition/ionization_energy_ei_si_un... www.chemicool.com/definition/ionization_energy_ei_si_unit_kj_mol_1_or_j_per_molecule.html
Ionization energy - Wikipedia, the free encyclopedia
The term ionization energy ( E I ) (of an atom or molecule) is most commonly used to refer to the energy required to remove (to infinity) the outermost electron in the atom or molecule when the...
en.wikipedia.org/wiki/Ionization_energy
Let's go through each element and discuss its corresponding ionization energy. ... I. What is ionization energy? The ionization energy is the amount of energy required to remove the outer most electron from a gas phase atom or ion.
pegasus.cc.ucf.edu/~jparadis/chem2045/chapter07.html
In going from nitrogen to oxygen there is a drop in the first ionization energy. This occurs because of the increased electron-electron repulsions that occur in the single filled 2p orbital in oxygen.
intro.chem.okstate.edu/WorkshopFolder/IonTrend.html intro.chem.okstate.edu/WorkshopFolder/IonTrend.html