Perhaps you mean one of these, I can't tell:
Anyway, least in what way?
For all practical purposes any electromagnetic radiation lower in frequency than UV (ultraviolet) is not considered to be ionizing, and there is no "most" or "least" ionizing in that very wide range. They simply do not ionize matter.
The least energetic Electro Magnetic radiation is Very Low Frequency radio waves.
Electromagnetic radiation with frequencies approaching the limit of 0Hz has the least amount of energy.
Ultra Low Radio Frequencies (ULRF)
uv radiation
Radio waves have the lowest frequency.
The electromagnetic spectrum is a continuum. The least energetic type of radiation may be found in what is known as "extremely low frequency" radiation (ELF). This is radiation with a frequency in the range 3-30 Hertz. ELF radiation can penetrate seawater and so is particularly useful for communicating with submarines.
Gamma radiation is the name some energetic radiation.
microwaves < infrared < visible < ultraviolet < x-rays < gamma rays .
EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.
All light - or rather, electromagnetic radiation - has both particle and wave properties. However, when the electromagnetic radiation is more energetic - such as in the case of x-rays or gamma rays - the particle aspects are more obvious; on the other hand, when the radiation is low-energy, such as radio waves, the wave properties are more obvious.
The electromagnetic spectrum is a continuum. The least energetic type of radiation may be found in what is known as "extremely low frequency" radiation (ELF). This is radiation with a frequency in the range 3-30 Hertz. ELF radiation can penetrate seawater and so is particularly useful for communicating with submarines.
Energetic High-frequency Electromagnetic Radiation
Gamma radiation is the name some energetic radiation.
r u sus
microwaves < infrared < visible < ultraviolet < x-rays < gamma rays .
The radio band is the least energetic section of the electromagnetic spectrum.
Convection and radiation (internally) and radiation (externally).
The packet of electromagnetic radiation is the photon.
Electromagnetic radiation is transferred by electromagnetic waves. Electromagnetic radiation is a fundamental phenomenon of electromagnetism.
EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.
EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.
All light - or rather, electromagnetic radiation - has both particle and wave properties. However, when the electromagnetic radiation is more energetic - such as in the case of x-rays or gamma rays - the particle aspects are more obvious; on the other hand, when the radiation is low-energy, such as radio waves, the wave properties are more obvious.