An isotope has 2 naturally occurring isotopes . X-107 has an abundance of 51.82% and a mass of 106.9 amu. X-109 has a relative abundance of 48.18% and a mass of 108.9 amu. Calculate the atomic mass. Identify the unknown element . Show work.

•what conclusions can you make about the relationship between the volume of a gas and its temperature? • what conclusions can you make about the relationship between the volume of a gas and its pressure? • what possible variables have you not accounted for? as you did the procedures, is it possible that the atmospheric pressure may have changed? if it did change over the course of your experiment, then how would your results have been affected?