what is first ionization enthalpy and also tell first ionization enthalpy higher than that of magnesium
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By definition, the first ionization energy of an element is the energy needed to remove the outermost, or highest energy, electron from a neutral atom in the gas phase. Q1. On the basis of periodic trends, determine the element with the higher first ionization energy in each pair (if possible).
The first ionization energy of magnesium is larger than sodium because magnesium has one more proton in its nucleus to hold on to the electrons in the 3s orbital.
Element Electron Configuration Ionization Energy
Magnesium (Mg) 1s22s22p63s2 738.1 kJ/mol
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