Carbon-13 and carbon-14 are isotopes of carbon - Edexcel - GCSE Physics Combined Science - Question 2 - 2019 - Paper 1
Question 2
Carbon-13 and carbon-14 are isotopes of carbon.
Nuclei of carbon-13 and carbon-14 can be represented by these symbols
$$^{13}_{6}C$$ and $$^{14}_{6}C$$
Complete th... show full transcript
Worked Solution & Example Answer:Carbon-13 and carbon-14 are isotopes of carbon - Edexcel - GCSE Physics Combined Science - Question 2 - 2019 - Paper 1
Step 1
Complete the table for an atom of carbon-13 and an atom of carbon-14.
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Answer
For carbon-13 (mass number 13):
Number of neutrons in the nucleus = 7
Number of electrons in orbit = 6
For carbon-14 (mass number 14):
Number of neutrons in the nucleus = 8
Number of electrons in orbit = 6
Step 2
State the name of an instrument that can be used to measure radioactivity.
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Answer
Geiger (Müller) counter
Step 3
State two sources of background radiation.
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