How did each of the scientists below contribute to the scientific understanding of the atom?Aristotle, Democritus, Dalton, Thompson, Rutherford, Chadwick, Bohr, and Becquerel and the Curies

Due to the length of the question I am giving 25 points per person

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Answer 1

Answer: Aristotle (322 BCE) was a Greek philosopher and scientist born in the Macedonian city of Stagirus.
He had many good ideas about science but his ideas about atomic theory were not and unfortunately they were accepted for over two thousand years. His predecessors, Democritus and Leucippus more correct ideas on atomic theory were forgotten.
He believed that there were only five elements: air which was light, earth which was cool and heavy, water which was wet, fire which was hot, and Aether which he viewed as a divine substance which made up the stars and planets. Aristotle believed that all matter was made up either of one of the elements of water air earth and fire or combinations of these four elements, with the exception of stars and planets which were made of aether. He thought that no matter how many times you split matter, it always goes into a smaller piece of that matter.
Aristotle’s theory of matter has been proven wrong. Many more elements have been discovered. Just Looking at the periodic table proves this. The only thing Aristotle discovered that carries on to the modern atomic theory is the fact that there are elements, which is implied in Aristotle’s theory. A negative point about his theories it that they were accepted until the seventeenth century until physicists (then termed natural philosophers) such Isaac Newton and Gottfried Leibniz began work that would ultimately disprove them.

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Which statement best relates an empirical formula with a molecular formula? They are always different for the same compound. Subscripts of empirical formulas can be reduced. Molecular formulas can be determined from empirical formulas. They both show the actual ratio of elements for a compound.

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ANSWER

empirical formula is the simplest ratio of whole numbers of components making up a compound

molecular formula is the actual composition of components making up a compound

to analyse each statement

A.They are always different for the same compound. -

the empirical formula in some instances can be the same as the molecular formula. therefore this statement is incorrect.

B. Subscripts of empirical formulas can be reduced

empirical formula gives the simplest ratios and the subscripts cannnot be further simplified therefore this is incorrect

C. Molecular formulas can be determined from empirical formulas

using the empirical formula, the molecular formula can be determined. therefore its correct.

D. They both show the actual ratio of elements for a compound

only the molecular formula gives the actual ratio of elements whereas the empirical formula gives the simplest ratio of elements. this statement is incorrect

The correct statement is C.

Answer:

Molecular formulas can be determined from empirical formulas.

Explanation:

A piece of titanium metal has a massive 67.5 g no volume of 15 cm³ what is the density of the titanium

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Answer:

3.4

Explanation:

How are vibrations different between bigger sizes rubber bands and smaller sized rubber bands?

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Assuming the kind of vibration you are talking about is the kind where you stretch the rubber band between two points and then "twang" it, then the answer is fairly complex. What happens when you cause the vibrations to start is you make something called a "standing wave". In a standing wave, each particle in the rubber band has a certain amount of energy which causes it to move backwards and forwards, the particles with more energy have a larger "amplitude" (how much they move), and of course the particles with less energy have a smaller amplitude. Now a standing wave has two main components: The amplitude, and the frequency. The amplitude of the whole wave refers to the largest amplitude any particles has. The frequency refers to how often it takes for one of the particles to move between the two furthest away points it can be.
To compare rubber bands, you must remember to keep certain things constant. If you're looking at their vibrations, the amount of energy you use to "twang" the rubber band should be the same each time you twang it (which is the same as applying the same force each time you twang it).

A larger rubber band has more area over which to spread the energy, as well as it has more mass for the energy to move, so the vibrations will have smaller amplitudes, and smaller frequencies, overall vibrating less and with smaller vibrations.

Why is there so much carbon is the human body?

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That is because carbon builds into everything as it has a great aptitude for forming bonds with other elements. It can create bonds and share electrons better than other atoms because of its properties.

carbon is the main building block to most cells. It helps with cellular resperation by which your body releases energy stored in glucose and the glucose compound is composed of carbon,hydrogen and oxygen. Carbon makes up 18% of the human body. Sugars in the body like glucose hold carbon elements.

The process of photosynthesis is essential in the oxygen/carbon dioxide cycle. Photosynthesis removes ______ from the atmosphere and produces and releases ______ into the atmosphere.A) glucose, oxygen
B) oxygen, glucose
C) carbon dioxide, oxygen
D) oxygen, carbon dioxide