Rachel has a spinner comprised of twelve equal-sized segments. seven segments are marked $4, and five segments are marked $2. she also has a bag of tokens containing seven $5 tokens and six $10 tokens. if rachel randomly draws one token and spins the spinner once, what is the probability that the combined value of the outcomes is $7?

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.