Trends In Change

One who studies human population trends and changes is called :

Trends in humane evolution have been

On going down a main sub-group in the periodic table (example Li to Cs in IA or Be to Ra in IIA), the expected trend of changes in atomic radius is a

Three elements X, Y and Z have atomic numbers 22, 40 and 72, respectively. Comment on the trend of change in ionisation potential values from X to Y and Y to Z.

Trends In Periods

Trends in chemical properties

Trends in chemical properties

Trends In Groups