If 1/9 = 0.1111 and 9 x 0.1111 = 0.9999 does that mean 1/9 x 9 = 0.9999?

exactly no

No

Step-by-step explanation: Because for the other problems they arent whole numbers and there repeating, your answer isnt going to be whole. but since the last one your multiplying 1/9 by 9, its going to equal 1.

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.

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