Construct a linear scale 1:3000 in meters to measure a maximum distance of 480m. If the primary division is to read 60m and secondary division 10m. Show on the scale a distance of 210m.

river is shown in this type of map

because the two particles have an equal charge, the charges will cancel out and give the atom an overall charge of 0. so, if at atom has 35 protons in the nucleus, we could expect it to have 35 electrons orbiting that nucleus.