Which Elements Tend To Have The Largest Atomic Radius In Their Periods. Down a group, atomic radii increase. In periodic table, 3rd period will have larger atomic radius than the second period.
Electrostatic interaction between nucleus and electron. Belongs to the 2nd period. This is because between each group, electrons occupy successively higher energy levels.
Na Has The Largest Atomic Radius.
The Third Period Will Have Larger Atomic Radius Than The Second Period Since The Third Period Lies Below The Second Period.
This is quite a stunning decrease in radius. This is because between each group, electrons occupy successively higher energy levels. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period.
Again, Cl Lies To The Right.
Belong to the 3rd period. Electrostatic interaction between nucleus and electron. The elements of the period 3.
The Element With The Largest Atomic Radius.
Atomic radius of hydrogen (h) 120 pm: The largest atomic radius in period 3 is of sodium atom (na). Francium has the largest atomic radius, while helium has the lowest.
Atomic Radius Of Elements (Pm) 1:
Thus, helium is the smallest element, and francium is the largest. Atomic radius of boron (b) 192 pm: The graph shows how atomic radius varies across period 3: