1. Poxvirus, which is a large virus, is about 10-4 meters wide. E. coli , which is an average-size
bacterium, is about 10 meters wide. How many times wider is E. coli than poxvirus?

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.

sounds & other waves originate from any vibrating object