The principal of a high school read a study that reported a positive correlation between the number of calculators owned by high school student and their math achievement .based on this study ,he decides to buy each student fat his school 2 calculators, hoping to improve their math achievement .explain the flaw in the principle reasoning.

yo answer should be 6 if im not mistaken

step-by-step explanation:

you're missing vital information, add to it so we can solve this problem for you.

step-by-step explanation:

idk i would have to be there to under stand it

step-by-step explanation:

idk i would have to be there to under stand it

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.