An in-ground swimming pool often has steps that are made from poured concrete. In the sketch of the steps below, the steps are identical, each measuring 19 inches from side to side, 11 inches from front to back, and 7 inches tall. Calculate the amount of concrete that is needed to form the steps. 19 in.11 in.7 in. The amount of concrete for the steps is cubic inches.

i think is g(1)=-1.

hope that i can

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.