Students must mix blue and yellow paint to make different shades of green. The shade of green
will be the same if the ratio of blue paint to yellow paint remains the same. The table shows six
different combinations used to make green paint.

no

Step-by-step explanation:

i dont get it. where are the "descriptions"?

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.