Jamie's father has asked him to paint the fence around their home. if the fence is 119.5 yards long, and jamie can paint an average of 4.78 yards of the fence per hour, how many hours will it take for jamie to finish painting the fence?
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it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

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.