what evicence suggest matter is made of tiny particals?

Answer 1

1. The Law of Multiple Proportions, postulated by John Dalton about 1805 based on his studies of combining weights of elements in compounds with more than one value: Like NO and NO2 and CuO and Cu2O. When these compounds occur, their combining weights are to one another (ratio) as small whole numbers. The conclusion is that the small whole numbers of ratios of combining weights point to small numbers of particles reacting on a macro scale.
2. The gas laws of Charles (V/T = k), Boyle (PV =k), and Gay-Lussac (P/T =k) (Not to be confused with Gay-Lussac's Law of Combining Volumes).
3. The three gas laws were summarized in 1813 by Amadeo Avogadro, who concluded that they were the three together evidence for a "particles" view of matter.
4. Ironically, critics seized upon certain experimental data found by Gay-Lussac in 1808 for his Law of Combining Volumes to discredit an "atomic theory."
5. In 1860, at a congress of chemists in Karlsruhe, Germany, Stanislao Cannizzaro presented a view that if hydrogen, nitrogen, oxygen, and the the halogens were recognized as diatomic elements, H2, N2, Cl2..., and so on, then all the difficulties wewre explained away.

Answer 2

Because you can cut any piece of matter into smaller and smaller units until you can't see any remaining particles well enough to cut them further. I'd call them tiny at that point, wouldn't you?

You may think this is a facetious response, but it's the very thought process used by both Aristotle and Leibniz in their ground breaking philosophical musings.

Answer 3

Refer to the Law of Multiple Proportions

Answer 4

The photo-electric effect. Deep inelastic scattering. Cross-section resonances in particle annihilation. The Millikin oil-drop experiment.

Answer 5

Electron microscope

Answer 6

You can see individual atoms using an electron scanning microscope.

Answer 7

It's called a micron microscope.

Answer 8

partical acclerators tell us this

Answer 9

micron-microscope