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heyy do you got the answer? i got that cuestion but i need the answer!!! did you finally get it?
Explanation:
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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Melting is an example of physical change.
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118 elements have been discovered so far
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