Annual precipitation rates can be collected for several years, added together, and divided by the number of years to obtain an average annual precipitation rate. Lesson 1.01

Question 2 options:
True
False

Which of the following observations indicates that an atom has neutrons? some uncharged particles are scattered by a beryllium atom when it hits a gold foil. some uncharged particles bounce back from a gold foil when it is bombarded with alpha particles. a radiation consisting of uncharged particles is emitted when alpha particles strike beryllium atoms. a radiation which attracts electrons is produced when a beryllium atom is bombarded with alpha particles.