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The first scientist to make a successful arrangement of elements into a periodic table of the elements was Dimitri Mendeleev. He arranged his elements in order of increasing atomic mass. However, there were some problems with that arrangement. Henry Moseley corrected those problems by arranging the elements in order of increasing atomic number. This is the arrangement we use today.
Yes. Everything tangible, and some things not usually felt ,such as gases, are materials. The only things that are not materials are pure abstractions such as ideas, concepts, and the like.
look at other scientific ideas
The ideas of Democritus (and Leukippus) were intuitive, not experimental; his ideas were too advanced to 2500 years ago
The importance of challanging fixed ideas within a team is to allow comparison with potentially useful ideas.
NE "natural" elements or "Aristotelian" elements are old alchemical ideas of Earth, Air, Fire, and Water - the so called Aristotelian elements - a concept that originated with the ancient Greeks.
The ancient Greeks were very creative and thought of a lot of important new ideas that no one had ever thought of before.
Greeks and Romans
The ancient Greeks were among the first to theorize about the composition of the atmosphere. They believed that air was one of the four fundamental elements of nature, along with earth, water, and fire. Their ideas laid the foundation for future scientific discoveries about the atmosphere.
From the ancient Greeks.
And don't forget that the Greeks invented democracy.
The greeks rejected democritus's idea because they thought that there was something smaller than the atoms.
The people of ancient Greece and Ptolemy (The Greeks)
the greek influence was only in philosophy and art
the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done the ancient Greeks thought that the gods were punishing them for bad things they have done
Europeans rediscovered the ideas of the ancient Greeks after 1500.
the people of ancient Greece, and Ptolemy (The Greeks)