Ernest Rutherford contributed to the atomic theory by discovering that the atom is mostly empty space.
He can to that conclusion because he fired alpha particles at gold foil, which was so thin that it was only around .00004 cm thick, and while almost all shot straight through, some actually bounced back!
He likened it to shooting a 15-inch round(bullet) at tissue paper, only to have it bounce right back at you! Based on this, he theorized that the atom is mostly empty, which is why a majority of the particles passed right through, but in the very center of the atom there is a super-dense structure called a nucleus that held a majority of the atom's mass. This super-dense mass would be more than massive enough to deflect the particle, should they collide.
Answer:
Shipping goods between the east coast and the west coast was made easier by the Transcontinental Railroad.
Explanation:
The building of the transcontinental railroad opened up the American West to more rapid development. The railroad also facilitated westward expansion, escalating conflicts between Native American tribes and settlers who now had easier access to new territories.
Randall Collins recommend to reform the American educational
system ts that they should have it to be considered as illegal in terms with how the the employers are likely to
engage of having to ask the individuals in regards with their educational
credentials by which it is not even necessary.
<span>Because they had threatened him.</span>
