Which isotope has 45 neutrons?
Understand the Problem
The question is asking to identify an isotope that has 45 neutrons. To answer this, we must know the mass number of the isotope and what element it corresponds to, as the number of protons plus neutrons gives the mass number.
Answer
Se-77 (Selenium-77)
The isotope with 45 neutrons is Se-77 (Selenium-77)
Answer for screen readers
The isotope with 45 neutrons is Se-77 (Selenium-77)
More Information
Selenium-77 is an isotope of selenium with 34 protons and 45 neutrons.
Tips
A common mistake is not correctly subtracting the number of protons from the mass number to find the number of neutrons.
Sources
- Solved Which isotope has 45 neutrons - brainly.com
- Solved Which isotope has 45 neutrons? - Chegg - chegg.com
- Which isotope has 45 neutrons A 80 36 Kr B 80 35 Br ... - Course Hero - coursehero.com
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