An element found in another galaxy exists as two isotopes. If 80.0 percent of the atoms have an atomic mass of 80.00 atomic mass units and the other 20.0 percent have an atomic mass of 82
00 atomic mass units, what is the atomic mass of the element? A) 81.0 atomic mass units
B) 64.0 atomic mass units
C) 80.4 atomic mass units
D) 16.4 atomic mass units
E) 81.6 atomic mass units
C
You might also like to view...
Limiting factors are physical or chemical factors that can determine the numbers of organisms in a population
Indicate whether the statement is true or false
On the average, the tropopause is highest above the surface over the ______.
A - arctic circle B - North Pole C - Antarctic circle D - South Pole E - equator
A seismic gap refers to an area that
A) is overdue for an earthquake, based on past earthquake frequency. B) has significant surface fracturing due to fault movement. C) has had tectonic plates separate, leaving large cracks in the surface. D) is lacking seismometers or other measuring devices.
Where on the following world map are the lowest salinities?
A. A B. B C. C D. D