How do you do 1/3 x 20? I don't know whether to leave the one at the bottom or flip the fraction

20/3

Step-by-step explanation:

to do fraction multiplication, you first need to change 20 to 20/1 to also make it a fraction.

multiply the denominators with denominators and numerators by numerators. If you do that you will get, 1/3x20/1=20/3

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.