Electronegativity increases while moving left to right along the period and decreases down the group in the Periodic Table.
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The periodic table tells you chemical elements. :)
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The rows (periods) work out to be the energy levels, ex. if an element is in period 5, it has 5 energy levels.
the benefit is that you can tell the atomic number atomic mass its symbol and where it is on the periodic table
where tell me then
The periodic table can be used to describe atomic structure by using the period to tell you how many shells (principle quantum number) there are in an element, and the group number can be used to tell you the number of valence electrons in the outermost shell.
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Atomic weight
The Periodic Table tells you how many protons are in an atom by their Elemental Number. In other words, yes, the Periodic Table tells you how many protons are in an atom.
You can tell it is an element as it is on the periodic table, as Fe, in the transition metals block.
The atomic number of each element is on the periodic table. The elements are arranged on the periodic table in order of increasing atomic number.