What does the 3 indicate in 1s22s22p63s1? the third shell third sublevel last shell has 3 electrons none of the above

The 3 indicates the third electron shell. (Which has only 1 electron in it in this configuration)

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Adozen is 12, and your needing to calculate the weight of one medium egg, so i would do 21/12=1.75 per egg, and check your answer by doing 1.75 * 12= 21 : ) : ): ): ): ) i hoped i

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