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Radiology Radiotherapy 4d369b2c

A free radical is

A
Any charged paicle
B
An atom or molecule with an unpaired electron in the outer shell
C
An atom with an even number of electrons
D
A chemically stable atom
High-Yield Explanation
Free radicals are atoms or groups of atoms with an odd (unpaired) number of electrons.Reference: Khan Physics of Radiation therapy; 5th edition

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