Here are four naturally occurring isotopes of the element Iron. The table below shows the four isotopes of Iron with their percent abundance and mass number. Based on the percent abundance of each isotope, make a claim about which isotope of Iron the atomic mass will be closest to. Justify your claim using evidence and reasoning.

What layer of the atmosphere is directly above the troposphere?

How many atoms are there in 5.70 mol of mg

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this