GENERAL KNOWLEDGE

GK

NUCLEAR SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is radioactivity?
A
The movement of electrons around an atomic nucleus
B
The emission of high-energy particles or waves from atoms
C
A term that describes the forces that hold atomic nuclei together
D
The application of heat energy to an atomic nucleus
Explanation: 

Detailed explanation-1: -Radiation is energy. It can come from unstable atoms that undergo radioactive decay, or it can be produced by machines. Radiation travels from its source in the form of energy waves or energized particles. There are different forms of radiation and they have different properties and effects.

Detailed explanation-2: -Radioactivity is the term used to describe the natural process by which some atoms spontaneously disintegrate, emitting both particles and energy as they transform into different, more stable atoms.

Detailed explanation-3: -The release of radioactive substances into the environment deriving from nuclear installations and from mining, purification and enrichment operations of radioactive elements. (

Detailed explanation-4: -Radiation is energy that comes from a source and travels through space at the speed of light. This energy has an electric field and a magnetic field associated with it, and has wave-like properties. You could also call radiation “electromagnetic waves”.

Detailed explanation-5: -As unstable atoms decay and attempt to become stable, the nuclei release energy in the form of ionizing radiation (alpha particles, beta particles and gamma rays). The energy released is called ionizing radiation because it has enough energy to knock tightly bound electrons from the atom’s orbit.

There is 1 question to complete.