Q. 94.8( 9 Votes )

Write the number

Answer :

There are 7 periods and 18 groups in the modern periodic table.

Metallic character decreases from left to right across a period because as atomic size goes on decreasing so tendency to lose electrons decreases.
But down a group metallic character increases as atomic size increases and tendency to lose electrons increases.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
All GrammarAll GrammarAll Grammar41 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses