Don’t quote me on this but I think: Magnesium: two valence electrons, 2 dots, 2 oxidation # Sodium: one valence electron, one dot, +1 oxidation Arsenic: five valence electrons, 5 dots, either -3,+3, or +5 Bromine: 7 valence electrons, 7 dots, either 1-,1*,5+ I hope this helps
If Julie ran eight quarter mile laps, then she ran a total of 1/4 * 8=2 miles. 2 miles is about 3220 meters, and 18 minutes is 1080 seconds, meaning that her average velocity was about 3m/s. Hope this helps!
since they are weighted different, they will have more or less force (more mass=more force), also the heavier an object, the greater its acceleration while falling.
