Going down and to the left on the Periodic Table, atomic radius increases. Therefore, the smallest atomic radius is that of Helium (He), and the largest is that of Francium (Fr). Coincidentally, these are also the most and least reactive elements.
The atomic radius trend goes as follows:
It tends to increase
The atomic radius increases down the group
The atomic radius increases on going from the top to the bottom of a group as the number of shells (energy levels) increases.
The lower down on the periodic table the higher the energy level, making the atomic radius larger
Atomic radius increases with increasing period number (= going down) within the same group.
down the group, the atomic radius increases as the shell (or energy level) increases.
It increases!
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Answer #2:
It decreases.
It tends to increaseThe atomic radius increases down the group
The atomic radius decreases.
The atomic radius decreases.
atomic radius decreases from bottom to top of the periodic table.
Along a period, nuclear charge increases. hence, atomic radius decreases.
It tends to increaseThe atomic radius increases down the group
The atomic radius decreases.
The atomic radius decreases.
atomic radius decreases from bottom to top of the periodic table.
Atomic radius increases down the group. So larger atomic radius are present at the bottom.
Along a period, nuclear charge increases. hence, atomic radius decreases.
Along a period, nuclear charge increases. hence, atomic radius decreases.
As you move across the periodic table from left to right (across a period), the atomic radius of the elements tends to decrease.
Examples for the groups I an II of the periodic table:- the atomic radius grows from top to bottom- the electronegativity descends from top to bottom
Atomic radius usually decreases from left to right across a period of the periodic table.
the larger the highest energy level number, the larger the atomic radius (Apex)
Francium has the largest atomic radius in Group 1 of the Periodic Table.