Sr = [Kr]5s2 O = [He] 2s2 is its condensed electron configuration. 2p⁴
The atomic number of strontium is 38. It has a [Kr]5s2 electrical configuration. The closest noble gas configuration, Kr(Z=36), which is a stable electrical configuration because the valence shell of Kr is filled with octets, is obtained when it loses two electrons from the 5s orbital.
Overall formal charge on the component in strontium oxide is zero (0).
Sr+2 and O2-ion are produced when SRO ionizes. Oxygen's -2 charge balances out the strontium +2 charge. Equal numbers of Sr+2 and O-2 are present in the crystal lattice of strontium oxide, resulting in a formal charge of zero overall.
Consequently, SrO is the compound's chemical formula.
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