Which electron configuration represents the electrons in an atom of calcium in an excited state?
A. 2-8-8
B. 2-8-8-2
C. 2-7-8-1
D. 2-7-8-3

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score