Chemistry, 11.10.2020 14:01 nadiasifuentes15

1.As with any grid, the periodic table has (left to right) and (up and down). 2.Every row is called a .
3.All the elements in the same period have the same number of .
Each column is called a .
4.The elements in each group have the number of electrons in the outer orbital (or valence electrons).
5.Noble gases and helium are considered “happy” because their shell is .

this was not a multiple-choice its about the periodic table

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1.As with any grid, the periodic table has (left to right) and (up and down). 2.Every row is call...