EVERYDAY SCIENCE

SCIENCE

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ is defined as the emission of alpha, particles beta particles or gamma rays by disintegration of nuclei of certain unstable elements.
A
Quark
B
Radioactivity
C
Fusion
D
Radiation
Explanation: 

Detailed explanation-1: -Alpha radiation is the name for the emission of an alpha particle in fact an helium nuclei, beta radiation is the emission of electrons or positrons, and gamma radiation is the term used for the emission of energetic photons.

Detailed explanation-2: -Two protons and two neutrons are bound together to form an alpha particle. High-energy electrons are known as beta particles. Gamma rays are photons, which are electromagnetic energy waves.

Detailed explanation-3: -Gamma radiation is simply a loss of energy by the nucleus, a deexcitation; much like emission of light or X-rays by energetic atoms. Alpha and beta decay almost always leave the nucleus in an excited state. Gamma emission brings the nucleus down to a more stable energetic state. Was this answer helpful?

Detailed explanation-4: -Alpha radiation Radiation is energy, in the form of particles or electromagnetic rays, released from radioactive atoms. The three most common types of radiation are alpha particles, beta particles, and gamma rays. Alpha radiation is not able to penetrate skin.

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