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  • The period number in the long form of periodic table is equal to:Option: 1 Maximum azimuthal quantum number of any element of the period<br

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

Option: 1

Maximum azimuthal quantum number of any element of the period


Option: 2

The atomic number of any element of the period


Option: 3

Magnetic quantum number of any element of the period


Option: 4

Maximum principal quantum number of any element of the period


Answers (1)

best_answer

Long form of Modern periodic table -

LONG FORM / PRESENT FORM OF MODERN PERIODIC TABLE :

(It is also called as 'Bohr, Bury & Rang, Werner Periodic Table)

  1. It is based on the Bohr-Bury electronic configuration concept and atomic number.

  2. This model is proposed by Rang & Werner

  3. 7 periods and 18 vertical columns (groups)

  4. According to I. U. P. A. C. 18 vertical columns are named as 1st to 18th group.

  5. Elements belonging to the same group having the same number of electrons in the outermost shell so their properties are similar.

  6. Elements belonging to the same group having same no. of electrons in the outermost shell so their properties are similar.

-

Period number in the periodic table corresponds to the principal quantum number of the outermost shell of elements.

Therefore, Option(4) is correct

Posted by

Kuldeep Maurya

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