help me yall!! Given a stack of n disks arranged from largest on the bottom to smallest on top placed on a rod, together with two empty rods, what is the minimum number of moves required to move the stack from one rod to another, what moves are allowed only if they place smaller disks on top of larger disks?

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the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.