HELPS PLZ guys i dont even know if this is supposed to be here but anyways i have a test tmr and I'm hella nervous right now can anyone help plz thx

how can I help you?and what is the question?

just stay calm and relax...being relaxed is very important for performing good in you exam. And also a good sleep is also must for your concentration on the day..

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.

50-60=10

step-by-step explanation: