6 in every 18 people have never flown on a plane? What is the ratio of people that have never flown in a plane to people that have?

1:2

Step-by-step explanation:

If 6 have never flown, then out of 18, only 18-6=12 have flown

Expressed as 6:12

Simply the above by dividing both sides by 6

The new ratio is 1:2

definitely a. the others have almost all data points on one side of the line.

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.