A number line going from negative 12 to positive 12. An arrow goes from 0 to negative 2, from negative 2 to negative 4, from negative 4 to negative 6, from negative 6 to negative 8, from negative 8 to negative 12. Which division problem is modeled on the number line?
12 ÷ 3
–12 ÷ 3
–12 ÷ –4
12 ÷ 4

what?

step-by-step explanation:

f

step-by-step explanation:

f

2nd one in the first row is correct

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.