Armor piercing
RN stands for Registered Nurse
RN - Registered NurseLPN - Licensed Practical Nurse
Radon
Registered Nurse
The acronym AP stands for Apical Pulse.
LEED® Accredited Professional (AP)
The Associated Press
Acess Pass
Yes, Rn is radon a radioactive nonmetal. But the symbol Rn does not stand for "radioactive nonmetal." Rn Radon has no stable isotopes, so yes it is always a radioactive nonmetal.
RN in military spec terms mean World War 2
Rn is radon, a radioactive gas, atomic number 86. It is the product of radium decay.