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OpenStudy (anonymous):
Can someone tell me what is the atomic mass of an element. I forgot >.<
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OpenStudy (anonymous):
It is the total number of neutrons and protons in the nucleus. U-238 is uranium isotope with 92 protons (= uranium) and 238-92 neutrons. He-4 is helium with 2p and 2n.
OpenStudy (anonymous):
Thank you :)
OpenStudy (anonymous):
You are quite welcome.
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