Suppose you're on a game show, and you're given the choice of three doors: behind one door is a sports car; behind all of the others is bicycles. you pick a door, say no. 1, and the host, who knows what's behind the doors, opens another door, say no. 2, revealing a bicycle. he then says to you, "do you want to pick door no. 3? " is it to your advantage to switch your choice?

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.