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What kind of information can we read from the period system? How was it built up?

User Mpobrien
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Period systems where built up from elements
User Existe Deja
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Answer:

Step-by-step explanation:

Periods correspond to the relationship of orbitals, or likely areas in which electrons will be found, inside the outermost shell of the atom. Successive periods down the table correspond to atoms with a more electron-rich core of inner shells.

User Mwl
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