That's called a "photon".
Photons are bundles of radiation that have no mass. They are the quanta of light and other forms of electromagnetic radiation.
Electromagnetic radiation emitted in tiny packets is called photons. Photons are the fundamental particles that make up electromagnetic radiation. They have both wave-like and particle-like properties.
He called the packets photons.
Quanta are fundamental pieces of energy that exist in the form of electromagnetic radiation or particles. They play a crucial role in understanding the behavior of matter and energy at the quantum level of physics.
The forms of electromagnetic radiation are (in increasing frequency):Radio WavesMicrowavesInfrared WavesVisible LightUltraviolet WavesX-RaysGamma Rays
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Light quanta are discrete packets of energy known as photons that make up electromagnetic radiation, including visible light. These particles exhibit both wave-like and particle-like properties, and are the basic unit of light energy.
The photon is the quanta of electromagnetic radiation (e.g. radio, light, x-rays, gamma rays). Quanta are the smallest units of something allowed.
Quanta is a word that is used in the world of physics. Quanta are discreet packets through which electromagnetic energy is emitted or absorbed. Quantization was first discovered in 1900.
Electromagnetic radiation is carried by electromagnetic waves.
EM radiation is the energy propagated through free space or through a material medium in the form of electromagnetic waves. Examples include radio waves, infrared radiation, visible light, ultraviolet radiation, X rays, and gamma rays. Electromagnetic radiation exhibits wavelike properties such as reflection, refraction, diffraction, and interference, but also exhibits particlelike properties in that its energy occurs in discrete packets, or quanta. Though all types of electromagnetic radiation travel at the same speed, they vary in frequency and wavelength, and interact with matter differently. A vacuum is the only perfectly transparent medium; all others absorb some frequencies of electromagnetic radiation.
The energy transferred by a quantum of electromagnetic radiation is directly proportional to the frequency of the wave. Higher frequency waves (like X-rays and gamma rays) have higher energy quanta and greater penetrating ability compared to lower frequency waves (like radio waves and microwaves) which have lower energy quanta and less penetrating ability.