Yea and why for solving my question it really helped :D Click on my text there is a picture

A (1, 3)

Step-by-step explanation:

The point where the two lines intersect is the only solution

That is (1, 3) is the solution of system of equations shown in graph

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.