Absolute Dating 2020
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is Absolute Dating?
Back
A method used to determine the exact age of an object or event in years, often using techniques like radiometric dating.
2.
FLASHCARD QUESTION
Front
What is a half-life?
Back
The time required for half of the parent isotope in a sample to decay into its daughter isotope.
3.
FLASHCARD QUESTION
Front
If 12.5% of the parent isotope remains, how many half-lives have passed?
Back
3 half-lives.
4.
FLASHCARD QUESTION
Front
What is the half-life of Carbon-14?
Back
5730 years.
5.
FLASHCARD QUESTION
Front
What is a daughter element?
Back
The product of radioactive decay of a parent isotope.
6.
FLASHCARD QUESTION
Front
If 25% of the parent isotope remains, how many half-lives have passed?
Back
2 half-lives.
7.
FLASHCARD QUESTION
Front
What is the formula to calculate remaining parent isotope?
Back
Remaining Parent Isotope = Initial Amount * (1/2)^(number of half-lives).
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