24 Questions
What is the least penetrating type of nuclear radiation?
Alpha
What type of radiation is never fully absorbed?
Gamma
What is emitted during Beta Decay?
High-speed electrons
What happens to the atomic number and mass number during alpha decay?
Atomic number decreases by 2, mass number decreases by 4
What happens to the atomic number when a positron is emitted by an unstable nucleus?
It decreases by 1
What is the term for the transformation of radiation due to particles emitted from the nucleus of radioactive atoms?
Radioactive decay
What is the process by which an unstable atom emits energy in the form of particles or waves?
Radioactivity
Who is credited with the discovery of radioactivity in 1896?
Henri Becquerel
What is the term for the process of transforming one element into another?
Transmutation
Who was the first woman to be awarded the Nobel Prize?
Marie Curie
What is the application of radiation in the food industry?
Food irradiation
What is the term for the energy emitted by a source?
Radiation
What is the term used to describe the spontaneous change of an unstable nuclide into another?
Radioactive decay
What type of radiation has the lowest penetration ability?
Alpha radiation
Which type of radiation is used for sterilization of medical equipment and pasteurization of food?
Gamma rays
What is the term used to describe the ability of radiation to pass through matter?
Penetration power
What is the composition of alpha particles?
Two protons and two neutrons
What is the purpose of Strontium-90 in medicine?
Treatment of bone cancer
What is the term for the combination of protons and neutrons in an atom?
Nucleons
What determines the identity of an element?
The number of protons
What is the result of beta decay in an atom?
The emission of an electron
What is the term for atoms of the same element with different numbers of neutrons?
Isotopes
What is the result of alpha decay in an atom?
The mass number decreases by four
What is the term for the number of protons in an atom?
Atomic number
Test your knowledge on the discovery of radioactivity, atomic structure, and the contributions of Henri Becquerel. Learn about the spontaneous emission of energy from an unstable atom's nucleus and the 'Uranium Rays' that changed the scientific world.
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