Pretend that you are the size of an atom and you are observing a reaction between a potassium atom and a fluorine atom. Describe how an ionic bond forms as the atoms react. Tell what happens to the valence electrons in each atom and how each atom is changed by losing or gaining electrons

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.