Question

calculate the position in detail ( block, period and row ) Of chlorime and phosphorus in periodic tables?​

Answer 1

Answer:

We already know that all the elements in periodic table are arranged serially according to their atomic numbers. There are 18 groups and 7 periods. The elements are arranged in such a way that the elements get categorized according to their properties.

Here we will work with only basic 8 groups (I A,II A,III A,IV A,V A,VI A,VII A and 0) .In the periodic table the first group (except Hydrogen) consists of strong Alkali Metals, the second group consists of Alkaline Earth Metals. The right of the periodic table consists of the non-metallic elements including noble gas and metalloid. The VII A group is also known as the Halogen Family and its elements are known as halogens. All Noble Gases are in the group 0. All these elements are collectively known as Normal Representative Element.

We have to keep certain things in mind (Not applicable for transition groups and its elements)

   1.      The period of element relates the number of shells of an atom of the given element.

   2.      The group is similar to the no of valence electrons of given element.

  3.      The valency is the no of electrons it accepts or donates. So in case of non-metals        valency = 8-valence electrons & in case of metals valency=valence electrons... This is B’COZ  non-metals accept so lacked electrons only considered.

   4.      The number of element in each period is calculated by 2n2.

                                                                           

Explanation: