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17 Cards in this Set
- Front
- Back
atom
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a basic chemical element
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atomic number
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the number of protons in the nucleus of an atom
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Bohr Diagram
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Diagram of an element
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chemical symbol
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2 letter to abbreviate an element on a Periodic Table
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electron
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a stable subtomic partical with a charge of a negative electricity
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energy level
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the fixed amount of energy that a system describes
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family
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a group of people united in chemical activaty
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isotope
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two or more forms of the same elements that contains eqal numbers
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mass number
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total of protons & neutrons in a nucleus
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mettalloid
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properties are intermediate between those of metals
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metal
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solid metrial, hard and shiny
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neutron
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paricle of about the same mass
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non-metal
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an element or a substance that is not a metal
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nucleus
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central and most important part of an object
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period
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a set of elements occupying an intire horazontal
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Periodic Table
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table of elements sort by metals, SLG, use in 2 letter symbol
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proton
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a stable subatomic parietal occurring in all atom nuclei
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