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Class 11
Chemistry :-NCERT Solution - Classification of elements and periodicity in properties.

Question 5
In terms of period and group where would you locate the element with Z =114?


Answer:

Answer

Elements with atomic numbers from Z = 87 to Z = 114 are present in the 7th period of the periodic table. Thus, the element with Z = 114(Flerovium) with atomic weight 289 & a poor metal  is present in the 7th period  & 14th group of the periodic table

In the 7th period, first two elements with Z = 87 and Z= 88 are s-block elements, the next 14 elements excluding Z = 89 i.e., those with Z = 90 – 103 are f – block elements, ten elements with Z = 89 and Z = 104 – 112 are d – block elements, and the elements with Z = 113 – 118 are p – block elements. Therefore, the element with Z = 114 is the second p – block element in the 7th period.  


SET

NCERT Chemistry Class 11