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One thing I learned was that the period number was how many shells there were.

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One thing I learned today was that the valence electrons are ten less than the columns of the periodic table.

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That the periods represent the amount of shells

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number of groups and number of valence electrons .

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number of groups and number of valence electrons .

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What are valence electrons?

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What are valence electrons?

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Why does Hydrogen have 1 valence but everything has more

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I learned that the period is the number of shells.

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None

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How many shells there are in total

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I learned how the shells work

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I learned that the period number is also how many shells are located outside of an atom, and that valance electrons are the number of electrons on the outermost shell of an atom.

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i dont have one :)

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What is the significance of valence electrons?

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The periods represent the number of shells on the atom

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What shell valance electrons are located in

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Why do some elements in the fourth period that has four shells not have more than 28 electrons, the max number of electrons for 3 shells?

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I learn the periods are one the side and the valance are on the top

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One quesion I still have is how transition metals affect the elements on the periodic table.