The periodic table gives the following information about oxygen:8O15.99A scientific article that you are reading mentions oxygen-18. How is oxygen-18 different from the typical oxygen atom described in the periodic table? Select all that apply.A) Oxygen-18 is an isotope.B) Oxygen-18 has 10 additional protons.C) Oxygen-18 has 2 additional neutrons.D) Oxygen-18 has a full valence shell and is therefore nonreactive.E) Oxygen-18 has more protons and fewer neutrons than a typical oxygen atom.
What will be an ideal response?
A, C
Oxygen-18 is an isotope of oxygen. Isotopes differ in their number of neutrons. A typical oxygen has an atomic mass of 16 (8 protons + 8 neutrons), oxygen 18 would still have 8 protons (proton number does not change) but it would have 10 neutrons.
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