Atoms, Elements, Compounds, and Mixtures
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| Atom | smallest particle of an element that can be combined with other atoms for form a molecule
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| Element | matter that cannot be changed into a simple form by any ordinary physical or chemical change
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| Electron | a small negatively charged subatomic particle
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| Proton | a small positively charged subatomic particle
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| Neutron | a subatomic particle with the same mass as a proton but no electrical charge
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| Atomic Number | number of protons an atom of an element contains
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| Isotopes | atoms of the same element that have different number of neutrons
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| Atomic Mass Number | the number of protons and neutrons in an atom
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| Synthetic Elements | elements that are not found in nature at all but are created in laboratories
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| Compound | a substance made of 2 or more elements
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| Ion | a charged particle formed when an atom or a group of atoms gains or loses one or more electron
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| Cation | A positively charged ion (the atom lost an electron)
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| Anion | a negatively charged ion (that atom gained an electron)
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| Ionic Compounds | formed when a cation joins with an anoin
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| Dalton's Model | all matter is made up of tiny individual particles; envisioned atoms as a sphere; atoms of each element are exactly alike but have different masses
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| Thomson's Model | atoms not solid spheres, contained subatomic particles (electrons- do NOT move)
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| Rutherford's Model | discovered protons and nucleus, electrons and protons evenly scattered throughought an atom; used gold sheet test
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| Bohr's Model | defined locations of electrons, electrons must follow specific orbital patters called energy levels- planetary model
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| Electron Cloud Model | electrons move about in an energy level with an ever changing pattern (blades of a fan)
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
kelsey09
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