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where to find the mass on a periodic table

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I learned that groups are vertical and periods are horizontal in the periodic table

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There are groups and periods

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Periods go across
groups go up and down

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The atomic # is the # on top of the symbol

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I learned how to find the amount of neutrons in each element using the formula M/P=N instead of PxN=M

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I learned that the table has groups and periods.

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periods are the rings of electrons around the nuclieus

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periods are the rings of electrons around the nuclieus

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I learned how to find out what element is in a certain group or period.

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I learned how to figure out how to find protons, neutrons, and electrons on the periodic table. Also, where to find groups and periods.

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The periodic table are mostly made up of metals and M-P=N.

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prontons +nutrons=mass-p=n

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I learned that the atomic number of an element is equal to proton.

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The top number on the element  is the number of protrons in the atom

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periods are across

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Groups are the columns and periods are in rows.

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One thing that I learned yesterday was that there are 18 groups on the periodic table

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The atomic number of an eement is actually only protons.

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I learned that mass-protons = Neutrons

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The atomic mass number in the square

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I learned that groups on the periodic table go up up and down and periods go across.

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I learned about periods and families, it makes elements easier to find.

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That the atomic number (A.P.E) of an element is the amount of protons in that element. It is also equal to the amount of electrons

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i learned about periods and groups. Periods only have the number of rings in common and groups are  almost the same to one another

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I learned about groups and periods on the periodic table, which I was not aware of as of Wednesday.

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That there are groups in the periodic table .

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There is ways to sort the periodic table in periods and groups.

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I learned how to find the number of neutrons. I also learned how to calculate the atomic mass using the formula, protons plus neutrons.

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I learned that the top number on top of an element on the periodic table says how many protons are in the atom of that element.

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I learned how to calculate the number of neutrons in an atom