Answer:
The number of electrons for the Mg atom are 12 electrons. The electron configuration of magnesium is,
Mg (Z= 12) = 1s2 2s2 2p6 3s2
Explanation:
The first two electrons is placed in the 1s orbital. The 1s orbital can accommodate two electrons.
The next 2 electrons for magnesium go in the 2s orbital.
The next six electrons will go in the 2p orbital. The p orbital can hold up to six electrons.
We’ll put six in the 2p orbital and then put the remaining two electrons in the 3s.
Therefore, the Magnesium electron configuration will be 1s22s22p63s2.
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