Find the area of a circle with a diameter of \color{green}{6}6start color green, 6, end color green.
either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter your answer as a decimal.
units^2
2
start superscript, 2, end superscript

The area of the circle is  or  

Step-by-step explanation:

we know that

The area of the circle is equal to

we have

----> the radius is half the diameter

substitute

-----> exact value

assume

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.