Answer:
C
Explanation:
because so that can evaporate
Explanation:
Oxygen and Nitrogen. is the correct pair.
Hi There!
<span>How do the mass number and charge of a nucleus change when it emits a gamma ray?
</span><span>The charge doesn't change as a result of emitting a photon (which is what a gamma ray is). The mass does change by a small amount (due to the energy-mass equivalence relationship; a photon has no rest mass, but does have energy), but not by enough to make any real difference in the mass number.</span><span>
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The question is accompanied of a table showing the atomic masses and abundances of the five isotopes and asks to calculate the atomic mass of the element with five significant figures. You just have to add the products of the atomic mass of each isotope times its abundance and divide by 100. This is the calculation:<span>
(179.946706*0.12 + 181.948206*26.5 + 182.9502245*14.31 + 183.9509326*30.64 + 185.954362*28.43 ) / 100 = 183.84 (which is rounded to five significant figures)</span>
The number of protons is the Atomic number