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23 Cards in this Set
- Front
- Back
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Sydney |
Taylor |
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Actinides |
-element in the second row of the rare earth elements |
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Alkali Metal |
-an element in group one of the periodic table |
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Atom |
-basic building block of the matter around us- smallest particle of an element |
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Atomic Mass |
-measure of an atoms mass that is equal to the number of protons and neutrons in the atoms nucleus |
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Atomic Number |
-the number of protons in the nucleus of an atom |
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Compound |
-a pure substance that forms when two or more elements join chemically in a fixed proportion |
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Electron |
-a negatively charged subatomic particle that is located outside the nucleus of an atom |
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Element |
-one of the basic substances that combine to from all other substances |
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Group |
-a vertical column in the periodic table also called a chemical family |
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Halogens Family |
-the elements of group seventeen in the periodic table |
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Lanthanides |
-an element in the first row of the rare earth elements of the periodic table |
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Matter |
-anything that takes up space |
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Metal |
-an element that conducts heat and electricity |
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Metalloid |
-an element that has some properties of both metals and non metals |
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Neutron |
-a particle with no charge, found in the nucleus of an atom. |
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Nobel Gases |
-an element in group 18 in the periodic table |
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Non Metal |
-an element that does not conduct heat or electricity well, dull, brittle, and gaseous |
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Nucleus |
-the center of an atom, contains protons and neutrons, controls functions and contains genetic material. |
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Period |
-a horizontal row in the periodic table |
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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 group three through twelve of the periodic table |
