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Questions and Answers
When the δ of a sample = 0, what relative isotopic composition does it have?
When the δ of a sample = 0, what relative isotopic composition does it have?
- A lower isotopic composition than the standard reference material
- The same isotopic composition as the standard reference material (correct)
- A higher isotopic composition than the standard reference material
- An unknown isotopic composition
What does the ‘del’ notation (δ; per mil) compare?
What does the ‘del’ notation (δ; per mil) compare?
- Electron configurations of different isotopes of an element
- Molar concentrations of different isotopes of an element
- Atomic masses of different isotopes of an element
- Isotopic compositions of an element in different components of a system (correct)
What does the ‘del’ notation (δ) stand for?
What does the ‘del’ notation (δ) stand for?
- Ratio comparison
- Absolute value
- Per mil (correct)
- Percentage difference
During photosynthesis, is the C in the organic matter that is formed from CO2, typically depleted or enriched in 12C relative to source CO2?
During photosynthesis, is the C in the organic matter that is formed from CO2, typically depleted or enriched in 12C relative to source CO2?
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What is the isotopic composition of the C in the organic matter formed from CO2 during photosynthesis?
What is the isotopic composition of the C in the organic matter formed from CO2 during photosynthesis?
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In photosynthesis, does the organic matter formed from CO2 contain more 12C or 13C?
In photosynthesis, does the organic matter formed from CO2 contain more 12C or 13C?
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