Absolute Dating

Question 1

particle✔ elementmaterial

Revolt · Accepted Answer

✔ element

Question 2

Stable ✔ UnstableSolid

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✔ Unstable

Question 3

unnatural✔ radioactivemagnetic

Revolt · Accepted Answer

✔ radioactive

Question 4

Which statements about radioactive decay are true? Check all that apply.Most elements are unstable.Radioactive decay happens when one kind of atom becomes another kind.Radioactive elements occur in nature.All elements have the same rate of decay.Carbon-14 decays into nitrogen-14.

Revolt · Accepted Answer

Radioactive decay happens when one kind of atom becomes another kind.; Radioactive elements occur in nature.; Carbon-14 decays into nitrogen-14.

Question 5

A scientist is studying a radioactive element that has a half-life of 63 years. Choose the correct answers from the drop-down menus to complete each statement about the element.

Revolt · Accepted Answer

✔ 63; It will take years for half of the sample to decay.: 63; In 189 years, of the sample will be left.: one-eighth; Scientists can figure out how old a sample is by multiplying the by the length of the half-life.: number of half-life cycles

Question 6

one-half✔ one-eighthone-sixteenth

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✔ one-eighth

Question 7

✔ number of half-life cyclesyearsweight of the sample

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✔ number of half-life cycles

Question 8

Which statements describe the image? Check all that apply.

Revolt · Accepted Answer

The process works only with organic matter.; The element has a half-life of 5,730 years.

Question 9

Use the drop-down menus to complete the paragraph.

Revolt · Accepted Answer

✔ igneous; Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: igneous; Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: unstable; Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: constant; Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: stable

Question 10

✔ unstablebalanced stable unbalanced

Revolt · Accepted Answer

✔ unstable

Absolute Dating Answers

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