Cu has an anomalous electron configuration. Write the observed electron configuration of Cu. Express your answer in complete form in order of orbital filling. For example, 1s22s2 should be entered as 1s^22s

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of