
Flashcard on Alpha Decay
Flashcard
•
Biology
•
12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is alpha decay?
Back
Alpha decay is a type of radioactive decay in which an unstable nucleus emits an alpha particle (2 protons and 2 neutrons), resulting in a new element with a lower atomic number.
2.
FLASHCARD QUESTION
Front
What is an alpha particle?
Back
An alpha particle is a type of subatomic particle consisting of 2 protons and 2 neutrons, identical to a helium nucleus, emitted during alpha decay.
3.
FLASHCARD QUESTION
Front
What is the effect of alpha decay on atomic mass?
Back
Alpha decay decreases the atomic mass of the original element by 4 units.
4.
FLASHCARD QUESTION
Front
What is the effect of alpha decay on atomic number?
Back
Alpha decay decreases the atomic number of the original element by 2, resulting in a new element.
5.
FLASHCARD QUESTION
Front
What is the range of alpha particles in air?
Back
Alpha particles have a very short range in air, typically only a few centimeters, due to their relatively large mass and charge.
6.
FLASHCARD QUESTION
Front
How does alpha decay compare to beta decay?
Back
Alpha decay involves the emission of an alpha particle, while beta decay involves the conversion of a neutron into a proton (or vice versa) and the emission of a beta particle (electron or positron).
7.
FLASHCARD QUESTION
Front
What is the significance of half-life in radioactive decay?
Back
Half-life is the time required for half of the radioactive nuclei in a sample to decay, providing a measure of the stability of the isotope.
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