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 out to about 60,000 years. The atomic number of C is 6, and of N is 7. 14C and 14N have the same: Group of answer choices
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Ответ:
The correct answer is - mass number.
Explanation:
The atomic number the number of electrons or protons present in a neutral atom.
Atomic number = Number of electrons = Number of protons
Whereas, the mass number the sum of the number of protons and the number of neutrons present in an atom.
Mass number = Number of protons + Number of neutrons
For C-14 and N-14:
C-14 isotope:
Atomic number = number of proton = number of electron = 6.
Mass number = 14
Number of neutrons = 14 - 6 = 8
In N-14 isotope:
Atomic number = number of proton = number of electron = 7
Mass number = 14
Number of neutrons = 14 - 7 = 7
Thus, these two isobars have same mass number.
Ответ:
Explanation is in the file
https://cutt.ly/kzjInUL