This shape has all identical faces and a surface area of 240 square meters. What is the area of each face? A 120
B 80
C 60
D 30

C 60

Step-by-step explanation:

240 is the square meter, and if each face is the same, u divide 240 by 4 which equals 60

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.