Scientists Use Carbon Dating to Determine the Age of Fossils

question 37

Multiple Choice

Scientists use carbon dating to determine the age of fossils. 14C is a rare isotope of carbon that has a half life of 5730 years and decays into 14N. By measuring the amount of 14C remaining in a fossil, scientists can estimate when the organism died to within 60,000 years. The atomic numbers of C is 6 and of N is 7.
-The most common isotope of carbon is ¹²C.¹⁴C has ____ than ¹²C.

• A) more protons
• B) more neutrons
• C) fewer neutrons
• D) fewer protons
• E) more electrons

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Definitions:

Cortex

The outer layer of an organ or structure, such as the brain or kidney, involved in various functions depending on the specific organ.

Surface Area

The total area exposed on the surface of an object or material.

Corpus Callosum

A broad band of nerve fibers joining the two hemispheres of the brain, facilitating communication between them.

White Matter

Bundles of parallel axons with their associated sheath in the central nervous system.