Radiation therapy for cancer patients works by damaging the DNA of cancer cells through either direct or indirect ionization of atoms in a DNA chain. Indirect ionization occurs when what 'liberated' molecule with an unpaired valence electron is formed?

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Considering all the tissues and cells in your body, 25 million new cells are being produced each second.


1. Radiation therapy for cancer patients works by damaging the DNA of cancer cells through either direct or indirect ionization of atoms in a DNA chain. Indirect ionization occurs when what 'liberated' molecule with an unpaired valence electron is formed?