Answer
a. O-16, O-18, F-18, Ne-18, and Ne-20 are all isotopes.
b. O-16 and O-18, and Ne-18 and Ne-20 are isobars.
c. O-16 and O-18, and Ne-18 and Ne-20 have the same chemical properties because they are isotopes of the same element.
d. O-16 and O-18, and Ne-18 and Ne-20 have the same number of neutrons.
Work Step by Step
a. Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. This means that isotopes of a certain element will have the same number of protons in the nucleus, which gives them the same atomic number and chemical properties, but will have different atomic masses due to the different number of neutrons.
b. O-16 and O-18 are both isotopes of oxygen and are isobars because they have the same number of protons (8) but different number of neutrons (8 and 10). Ne-18 and Ne-20 are both isotopes of neon and are also isobars because they have the same number of protons (10) but different number of neutrons (8 and 10).
c. O-16 and O-18, and Ne-18 and Ne-20 have the same chemical properties because they are isotopes of the same element.
d. O-16 and O-18, and Ne-18 and Ne-20 have the same number of neutrons.
