Atoms of 16O, 17O, and 18O have the same number of.?
b. protons, but a different number of neutrons
c. protons, but a different number of electrons
d. electrons, but a different number of protons
Help? And could someone explain this to me? I'm TERRIBLE at Chemistry.
Answer:
Changing the number of protons would make it some other element. They're all O, so protons has to be the same.
The number in front is the mass number. If the mass is changing but the protons aren't, then you have to be increasing the neutrons.
b. neutrons can change but different protons mean different elements... I think.
These are isotopes of Oxygen.
the numbers have to be written in Superscript.
See this page
http://en.wikipedia.org/wiki/isotopes_of...
Z is atomic number, or number of protons. All have 8 protons or it would be a different element with different number of protons.
What can differ is the number of Neutrons, the table lists all the isotopes. 16, 17, 18 neutrons give the only stable isotopes.
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