A stainless steel patio heater is a square pyramid. The length of one side of the base is 20.4. The slant height of the pyramid is 90.5. What is the height of the​ pyramid?

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step-by-step explanation:

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step-by-step explanation:

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.

      2

  2 is to go somewhat to the top right of a because it is squared    

v= a h/3