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17 Cards in this Set
- Front
- Back
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Atom
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the smallest part of an element block of matter.
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atomic number
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The number of protons in an atoms nucleus.
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body diagram
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a simplified drawing of appearance
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chemical symbol
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one or two letter initial that represents the name of an element.
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electron
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a negitively charged particle that moves in an orbit shell outside an atoms nucleus.
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energy level
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electron are found in paths around an atoms nucleus energy level.
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family
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a vertical column in the periodic table that containssimilar element quailities
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isotope
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atoms of the same element with different numbers of neutrons are called isotopes
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mass number
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total number of protons in an nucleus.
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metaliod
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an element whose properties are intermediat
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metal
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a solid material that is typically hard,shiny,malleable fusible and ductile.
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neutron
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a subatomic particle of about the same mass as a proton but without an electric charge present in atomic nuclei except those of ordinary hydrogen.
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non-metal
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the elements generally regarded as nonmetals
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nucleus
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the central and most important part of an object movement or group forming the basis for its activity and growth.
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period
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long growth of time
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periodic table
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a table of the chemical arranges in order of atomic number usually in in rows.
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proton
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a stable subatomic particle ocurring in all atomic nuclei.
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