mamyamirah mamyamirah

24-02-2021
Chemistry

contestada

help! help! plz............
1)What is most important of periodicity lest 4
2)why are energies of
various energy levels in hydrogen atomic are negative?

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cnghlnao cnghlnao

24-02-2021

There the picture is the answer from the internet

Ver imagen cnghlnao

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