Which Of The Following Elements Has The Smallest Radius?

Which Of The Following Elements Has The Smallest Radius?

a. K

b. CA

c. Br

d. Kr

e. Zn

Radius is half the distance of a circle’s diameter, which is the longest straight line that crosses the center of the circle and connects two points. All these elements belong to the 4th group and Kr has the smallest atomic radii as it lies across the period.

Comparing Atomic and Ionic Radii:

There is an equivalent to atomic radius when it comes to ions, which is the ionic radius. Ionic radius depends on the same principle as atomic radius, but the two surely have different values for the same element. However, which is larger depends on whether the element has lost electrons or gained them.

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