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Marie Curie studied the radiation of all compounds containing the known radioactive elements, including uranium and thorium, which she later discovered was also radioactive. She also found out that:
- you can exactly measure the strength of the radiation from uranium;
- the intensity of the radiation is proportional to the amount of uranium or thorium in the compound - no matter what compound it is;
- the ability to emit radiation does not depend on the arrangement of the atoms in a molecule; it must be linked to the interior of the atom itself - a revolutionary discovery!
When she realized that some uranium and/or thorium compounds had stronger radiation than uranium, she made the following hypothesis: there must be an unknown element in the compound which had a stronger radiation than uranium or thorium. Her work aroused the interest of her husband, Pierre Curie, who stopped his own research on crystals and joined the "detective work" with his wife. And Marie was proven right: in 1898 the Curies discovered two new radioactive elements: radium (named after the Latin word for ray) and polonium (named after Marie's home country, Poland).
☁️<u>My Answer☁️ and ✧My Explanation✧:</u>
Adolf Hitler wrote "Mein Kampf" and it is symbolized as a clear-cut warning to the world of Hitler's intentions for war and genocide, which may have been recognized and prevented had more people read it outside of Germany, some historians say. In many instances throughout the novel, Hitler’s infamous work of literature was used against the Nazi regime to bring protection and safety to those in possession of the novel.
The Union states had about 3 times the amount of land than the Confederate states did.
Law: People that have turned in all assignments due for the day and have a B or higher in the class get 15 minutes of free time at the end of the class. They can utilize this time for homework, phone time, socializing time, or with other school appropriate activities.
Why: This law can motivate students to do well in the class and complete all assignments. In the long run this law can be beneficial to the students education. Not only will they be motivated to have good grades, but it might boost moral. Students might no longer dread the long hours of lecture and assignments if they have a reward for their hard work to look forward to.
Hope this helped!
~Just a girl in love with Shawn Mendes
