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:
During 1920's America was at a peaceful and care free time. Many advancements in Technology, Music, and literature began booming.
Explanation:
The reason he coined the term the "Jazz Age" was due the 1920's being a period in time where a cultural and economic boom began to emerge.
The colonies were better off governing themselves without British influence.
Answer:
Andrew Jackson was the president for the "common man." Under his rule, American democracy flourished as never before -- but the economy and the Native American population suffered at his hands.
Explanation:
Andrew Jackson was the seventh president of the United States. He served two terms in office from 1829 to 1837.
During Jackson’s presidency, the United States evolved from a republic—in which only landowners could vote—to a mass democracy, in which white men of all socioeconomic classes were enfranchised.
Jackson oversaw the Indian Removal Act, which forcibly relocated tens of thousands of Native Americans and had a devastating effect on the Native population.
