which of the following pairs are isotopes
LectureNotes said which of the following pairs are isotopes?
Answer: Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons in their nuclei. Therefore, in order to identify which pairs are isotopes, we need to look for elements with the same atomic number but different mass numbers.
For example, let’s consider the pairs:
- Carbon-12 and Carbon-14
- Nitrogen-14 and Nitrogen-15
- Oxygen-16 and Oxygen-18
Among these pairs, the isotopes are:
- Carbon-12 and Carbon-14
- Nitrogen-14 and Nitrogen-15
- Oxygen-16 and Oxygen-18
These pairs are isotopes because they belong to the same element (same atomic number) but have different numbers of neutrons (different mass numbers) in their nuclei.