Simplify 81 to the power of -3 over 4 end exponent 81^3/4

A. fourth root of 81 to the power of -3 end exponent end root ^4SQRT81^-3

B. fraction numerator 1 over denominator(fourth root of 81)cubed end fraction 1/(^4SQRT81)^3

C. 1 over 27 1/27

D. -27

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.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!