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8. Which quantum number corresponds to the period number in the modem periodic
Table?
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For example, Oxygen, which is 8, has that number of protons, electrons and nuetrons. ... In the modern periodic table, the period number indicates the: Options. ... It has the atomic number 54 in the periodic table and belongs in Group 18, the ... The period tells you the principal quantum number of the outer electron shell.
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n is the principal quantum number or number of shells. It represents the number of periods to which an element belongs to. Thus, n=1 represents first period, n=2 represents second period and n=3 represents third period. Hence periodic table is arranged on the basis of the electronic configuration of elements.
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