An element has three naturally occurring isotopes with atomic masses of 25.958 amu, 27.242 amu, and 29.670 amu. The relative abundances of these elements are 92.2%, 4.69%, and 3.08%, respectively. What is the average atomic mass of the element? Answer to three decimal places.

Which is a difference between molecular compounds and ionic compounds? select the correct answer below: question 5 options: molecular compounds typically form between a metal and a nonmetal, while ionic compounds typically form between nonmetals. molecular compounds result from the transfer of electrons between atoms to form ions, while ionic compounds result from the sharing of electrons between neutral atoms. molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges. molecular compounds have high melting points and high boiling points, while ionic

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves

State one important difference between a physical change and a chemical change?