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Sveta_85 [38]
3 years ago
12

Write the complete electron configuration for an atom of element 3

Chemistry
1 answer:
kondaur [170]3 years ago
3 0
Based on the ionization energy levels of element 3, one can tell that the element is Magnesium. Magnesium has an atomic number of 12 so in a neutral atom, that means that there are 12 protons and 12 electrons. So based on the electrons, we can write the electronic configuration as:

1s^{2}  2s^{2}  2p^{6}  3s^{2}
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