Ionization energy is the energy required to remove the
outermost electron from one mole of gaseous atom to produce 1 mole of gaseous
in to produce a charge of 1. The greater the ionization energy, the greater is
the chance f the electron to be removed from the nucleus. In this casse, Radium
has the largest ionization energy.
Chlorine (Cl) forms a salt when it is combined with a metal. This element belongs in <span>halogens.
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The molecules in gas are farther apart and have more room to bounce around than liquid
