Chemistry - PERIODIC TABLE Question with Solution | TestHub
ChemistryPERIODIC TABLEIntroduction, NamingMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
Inert gases are good reference points to locate the position of an element in periodic table. Consider an element 'X' of p-block having total five valence electrons and placed in the same period in which transition elements of 3d series are present.
Answer the following question :
Element ' ' belongs to following period and group respectively :
Options:
Answer:
B
Solution:
Element X is a p-block element.
It has 5 valence electrons → belongs to Group 15 (Nitrogen group).
It is in the same period as 3d transition metals → 3d metals start from Sc (Z = 21) to Zn (Z = 30) → period = 4.
Stream:JEESubject:ChemistryTopic:PERIODIC TABLESubtopic:Introduction, Naming
⏱ 2mℹ️ Source: QB
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