The period number in the long form of the periodic table is equal to:

magnetic quantum number of any element of the period

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atomic number of any element of the period

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maximum principal quantum number of any element of the period

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maximum azimuthal quantum number of any element of the period

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Solution

The correct option is C maximum principal quantum number of any element of the period
the principal quantum number is represented by ' $n$ '. It determines the period number of the element. For example: For $M g$ , the maximum principal quantum number is 3, thus it belongs to period 3 of the periodic table.

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Similar questions

The period number in the long form of the periodic table is equal to
(a) magnetic quantum number of any element of the period
(b) the atomic number of any element of the period
(c) Maximum principal quantum number of any element of the period
(d) maximum azimuthal quantum number of any element of the period

Q. The principal quantum number and azimuthal quantum number values for the differentiating electron of 'd' block elements are __________ and _________.

Q. The principal quantum number and azimuthal quantum number values for the differentiating electron of

^{'} d^{'}

block elements are ................. and .................

Q. Assertion :In the present form of periodic table, the period number corresponds to the highest principal quantum number of the elements in the period.
Reason: Elements having similar outer electronic configurations in their atoms belong to same period.

Q. If n and l are respectively the principal and azimuthal quantum numbers, then the expressions for calculating the total number of electrons in any shell is:

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The period number in the long form of the periodic table is equal to:

The correct option is C maximum principal quantum number of any element of the periodthe principal quantum number is represented by 'n'. It determines the period number of the element. For example: For Mg, the maximum principal quantum number is 3, thus it belongs to period 3 of the periodic table.