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Home Q & A Board Science-Related Homework Help Physics
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11 years ago
The most common isotope of oxygen has atomic number 8 and atomic weight 16. Another isotope has two extra neutrons. What are the atomic number and atomic weight of this isotope?
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#1
11 years ago
The atomic number is still 8 still that reflects the number of protons. If the number of protons were different the it would be another element entirely.

Atomic Number : 8

Atomic Weight : 18
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#2
Staff Member
11 years ago
The atomic number would still be 8 because the number of protons wouldn't change, but the atomic weight would increase to 18.
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