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ATOMS - Coggle Diagram
ATOMS
Models
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The matter is made of small indivisible atoms. Atoms can't be subdivided, created, or destroyed.
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An atom is electrically neutral. It has no charge. In atom, both positive and negative charges are equal.
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Atoms are mostly empty space. Most of the mass is concentrated in the center of atom. This tiny, dense, positively charged core called a nucleus.
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Electrons don't move around the nucleus in orbits. The electron cloud is the region of negative charges, which surrounds the nucleus.
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Electrons orbit the nucleus in orbits that have specific size and energy. The energy of orbit is related to its size.
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Development
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He named the smallest piece of matter "atomos," which means "not to be cut."
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He declared that all matter was made of four elements: fire, air, water, and earth.
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He formulated the first atomic theory since the 'death of chemistry" that occurred during the prior 2000 years.
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He contributed to atomic theory through formulating quantum mechanics in terms of matrices and in discovering the uncertainty principle.
