generally speaking electrons are found in shells which we also call principal energy levels located at increasing distances from
the central nucleus the first ionization energy or ie with little sub 1 of an atom of an element describes the amount of energy required to remove the outermost electron from an atom of a_____________________.
Ionization energy is the energy required to remove the most loosely held electron from a gaseous atom or ion. For the first Ionization energy, it is the energy needed to remove the most loosely bound electron from a gaseous atom
where p is the pressure, v is the volume, n is the number of mole (which can be equal to mass /mr), T is the temperature in kelvin, and r is (molar constant) = 8.31 (units)
