The angles of a quadrilateral measure 80,100 100 80 in this order

A Trapezoid.

Step-by-step explanation:

Imagine the angles as the four corners as 1 (80) being the top left, 2 (100) the bottom left, 3 (100) the bottom right, and 4 (80) the top right.

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.