If C = -x + 8 and D 2x2 – 102 – 1, find an expression that equals 3c-3D in standard form.
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135 is your answer

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try 180 times three then divide that number by 4 (sides) to get your answer. im glad to : )

don't know what that says sorry i can't you

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idk what it says

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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