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Criado por ioannis_lion
mais de 10 anos atrás
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Mass numbers are not whole numbers as...
Isotope
Carbon-12 and carbon-13 occur
Carbon-14 breaks down through radioactive decay to form
Relative atomic mass
Periodic table shows relative atomic mass to...
Neil's Bohr
Electron shells
Bohr Model
Electron configuration
In the first 20 elements..
Maximum number of electrons a shell can hold is
The closer the electrons are...
She'll diagrams
Valence Shell
Emission Spectrum
Why does emission spectrum occur.