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20 Cards in this Set
- Front
- Back
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8th Grade Science
1st six weeks 6 weeks test |
study hard!
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tool that measures the mass needed to PULL and object
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SPRING SCALE (a force is a "push or pull" - spring scales measure force)
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tool that measures the volume of irregularly shaped objects
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GRADUATED CYLINDER
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a representation of an object
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MODEL
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particles located inside the nucleus of an atom, and have no charge
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NEUTRONS
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particles located outside the nucleus and have a negative charge
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ELECTRONS
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number of protons in an atom ( also the number of electrons)
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ATOMIC NUMBER
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small particle of matter named by Democritus
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ATOM
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protons + neutrons =
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ATOMIC MASS
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element that is liquid at room temperature
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MERCURY AND BROMINE
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within each square on a periodic table, where is the atomic number located?
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AT THE TOP, ABOVE THE SYMBOL
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within each square on the periodic table, where is the atomic mass located?
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AT THE BOTTOM, BELOW THE NAME
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how are elements in the periodic table arranged?
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FROM LEFT TO RIGHT, TOP TO BOTTOM, BY INCREASING ATOMIC NUMBERS
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rows on the periodic table
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PERIODS
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columns on the periodic table
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GROUPS OR FAMILIES
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elements on the right side of the periodic table
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METALS
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elements on the left side of the table
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NON-METALS
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elements next to the zig-zag line
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METALLOIDS
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what type of elements easily conduct electricity, are malleable and ductile
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METALS
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another name for Group 18
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NOBLE GASSES
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