Katrina is rolling a six-sided number cube. a. Determine the probability Katrina will roll a number equal to or less than 2.

b. Determine the probability Katrina will roll a number greater than 2.

c. Are the events in parts a and b complementary? Explain why or why not.

a. 2/6 probability

b. 4/6 probability

c. yes because they both add up to six

Step-by-step explanation:

i.k a and b are right but i.d k for sure about c its been a while since i did this type of math lol im sure ill think of it later

Have a nice day and always show kindness

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.