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23 Cards in this Set
- Front
- Back
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Katie
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Joyce :))
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actinides
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an element in the second row of the rare earth elements in the periodic table |
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alkali metal
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an element in group 1 of the periodic table
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atom
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the smallest partial of an element
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atomic mass
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the average mass of one atom of an element
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atomic number |
the number of protons in the nucleus of an atom
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compound |
a substance made of two or more elements chemically combined
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electron |
a tiny, negatively charged particle that moves around the nucleus of an atom
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element |
a substance that can not be broken down into other substances by chemical or physical means
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group |
elements in the same vertical column of the periodic table, also known as family
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halogens family |
the elements in group 17 of the periodic table
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lathanides |
an element in the first row of the rare earth elements in the periodic table
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matter |
everything is made up matter, it takes place in everything
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metal |
an element that conducts heat and electricity well, I shiny, and can be hammered into sheets or drawn into wires
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metalloid |
an element that has some properties of both metals and nonmetals
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neutron |
a particle with no charge, found in the nucleus of atom
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nobel gasses |
an element in group 18 of the periodic table
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nonmetal
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an element that does not conduct heat or electricity well and is dull and brittle or gaseous
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nucleus
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the center of an atom, containing protons and neutrons . a large structure in a cell the controls many of its functions and contains genetic material
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period |
a horizontal row in the periodic table , a block of time on the geologic time scale during which unique rock layers were laid now
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periodic table |
a chart that organizes information about all the known elements according to their properties
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proton |
a positively charged particle found in the nucleus of an atom
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transition metal |
an element in groups 3 through 12 of the periodic table
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