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Down a period the atomic radius increases as the number of shells (or energy levels) increases.
Across a period the atomic radius decreases as the effective nuclear charge increases.
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Q: How does atomic radius vary in group and in period on periodic table?
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Related questions

How does atomic radius vary down a group?

Atomic radius increases down a group on the periodic table because with each additional period an energy level is added.


Does the atomic radius decrease as you move up a group and across a period from left to right on the periodic table?

the atomic radius decreses from left to right in periodic table due to increase in the number of succesive element the electrons of the outermost shell are more attracted towards nucleus and the atomic radius or atomic size decreases.


Does Francium have the largest atomic radius on the periodic table?

Francium has the largest atomic radius in Group 1 of the Periodic Table.


How does atomic size generally go on the periodic table?

Atomic radius generally decreases as you go from left to right in the same period. Atomic radius increases as you go down the same group.


In general the atomic radius of an atom as you move down a column in the periodic table?

Decreases. Look at the images under atomic radius, on wikipedia.


. How does atomic radius change from top to bottom in a group in the periodic table?

It tends to increaseThe atomic radius increases down the group


What are the general trends andpatterns within the periodic table?

Atomic radius increases down the group. It decreases along a period.


Why has bromine got a bigger atomic radius than iodine?

Bromine has a SMALLER atomic radius because it has one more electron shell than Iodine. On the periodic table, atomic radius of an atom decreases across a period and increases down a group. Since Bromine and Iodine are in the same group, you know Bromine has a smaller atomic radius because it is in a lower period.


How does atomic radius increases in the periodic table?

atomic radius increases down a group as the number of shells increases


What trend in atomic radius do you see as you go down a group on the periodic?

The atomic radius of elements increases as you go down a group. This increase in radius as you go down a period is primarily caused by the increasing principal quantum number of the outer electron shells.


How does Atomic Radius behave along the Periodic Table?

Atomic radius increases down a group due to increase in number of shells. Its value decreases along a period due to increase in nuclear charge.


What happens to atomic radius as you move from bottom to top of the periodic table?

atomic radius decreases from bottom to top of the periodic table.