The second ionisation energy of all of the alkali metals is very high and the alkalides have much theoretical interest due to their unusual stoichiometry and low metastable or stable.
12.
Why does ionisation energy decrease as atomic number increases, and are there any anomalies to this generalisation ? talk ) 21 : 06, 1 January 2008 ( UTC)
13.
Because it has the largest atomic radius among the halogens, iodine has the lowest first ionisation energy, lowest electron affinity, lowest electronegativity and lowest reactivity of the halogens.
14.
The plasma temperature is selected to maximise ionisation efficiency for elements with a high first ionisation energy, while minimising second ionisation ( double charging ) for elements that have a low second ionisation energy.
15.
The plasma temperature is selected to maximise ionisation efficiency for elements with a high first ionisation energy, while minimising second ionisation ( double charging ) for elements that have a low second ionisation energy.
16.
The second ionisation energy of the alkali metals is much higher than the first as the second-most loosely held electron is part of a fully filled electron shell and is thus difficult to remove.
17.
Its first four ionisation energies, 1086.5, 2352.6, 4620.5 and 6222.7 kJ / mol, are much higher than those of the heavier group 14 elements.
18.
The high third ionisation energy for Eu and Yb correlate with the half filling 4f 7 and complete filling 4f 14 of the 4f subshell, and the stability afforded by such configurations due to exchange energy.
19.
Since large angle scattering is rare for positive ions, a range may be well defined for that radiation, depending on its energy and charge, as well as the ionisation energy of the stopping medium.
20.
In the case of transition metals such as iron, cobalt, and nickel, the absorption spectra for EMCD are usually measured at the 3d state by the absorption of a virtual photon providing the ionisation energy.
