The central Xe atom in the XeF4 molecule has unbonded electron pair(s) and bonded electron pair(s) in its valence shell.

Acontrol during an experiment. might change remains constant does not exist does change

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

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