I'm in a march madness competition for math, and i really need to win, so if you could , that would be great! since i got this question wrong, i need to do another one like this again to get a point, so a good explanation would be nice, but is optional. (yes i actually like looking at the explanation : ))

the rule is that for every output (x) the input (y) goes down by 1, (for every x that increases y goes down by 1 to help clear up what I said)

positive

step-by-step explanation:

the quadrant is facing upwards

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.