Elements And Compounds worksheets
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Q. Scientists use radioactive decay to measure...
answer choices
relative time
absolute time
half-lives
time of day
Q. The length of time required for half of the radioactive atoms in a sample to decay is its...
answer choices
era
age
half-life
eon
Q. How does absolute age differ from relative age?
answer choices
only absolute dating indicates which rock is older than another
only absolute dating finds the age in years
only relative dating finds the age in years
Q. Radiometric dating is possible because the rates of decay of radioactive isotopes _____.
answer choices
change over time
change from place to place
are constant
vary widely
Q. If the half-life of a radioactive group of atoms is 100 years, then how old is the rock if there have been two half-lives?
answer choices
25 years
200 years
400 years
800 years
Q. The original element that undergoes radioactive decay is known as the...
answer choices
daughter element
half-life
parent element
carbon-14
Q.
The element that is the product of radioactive decay is known as the...
answer choices
daughter element
half-life
parent element
carbon-14
Q.
How many grams of Carbon-14 will remain after 17,100 years- C-14 has a half life 5,730 so 17,100 is about 3 half lives?
answer choices
32 g
16 g
8 g
4 g
Q. You find a rock sample with radioactive atoms present. If 25% of the original radioactive atoms were present, how many half-lives has the rock been around for? (Hint, at Half-Life = 0, you start with 100%)
answer choices
zero
1
2
3
Q. Two isotopes of carbon are carbon-12 and carbon-14. These isotopes differ from one another by two protons.
answer choices
true
false
Q. The graph shows the generalized rate of decay of radioactive isotopes over 5 half-lives.
If the original mass of a radioactive isotope was 24 grams, how many grams would remain after 3 half-lives?
If the original mass of a radioactive isotope was 24 grams, how many grams would remain after 3 half-lives?
answer choices
12
24
3
6
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Interactive elements-and-compounds worksheets & quizzes
Quizizz is an interactive learning platform for teachers and students. It offers a range of worksheets and quizzes for science subjects such as chemistry, enabling teachers to easily create and assign tests on elements and compounds. With Quizizz, teachers can quickly assess student understanding and track progress in a fun and engaging way.