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Definition
| a very hard metal that is used to make stainless steel, rechargeable batteries, tanks to hold corrosive chemicals, and the five-cent coin |
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| "chrome"; a shiny metal often applied to polished steel to prevent it from rusting |
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| the densest of everyday metals; used to make car and truck batteries, wheel weights, and firearms ammunition |
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| a metal often used to coat steel to prevent it from rusting; also used in flashlight batteries |
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| an odorless, yellow solid called brimstone in the Bible; flammable and burns easily |
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| a semimetal that is an ingredient in sand, quartz, and glass; in pure form, used to make computer chips |
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| a waxlike solid with two forms, white and red |
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| a colorless and odorless gas used in chemical factories and as rocket fuel |
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| a common alkali metal found in the rocks, soils, and oceansof the earth; does not occur naturally in pure form |
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Definition
| a stron but lightweight alkali metal used in parts for airplanes and some cars |
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Definition
| the most common alkaline earth metal |
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| an ingredient in calcium carbonate |
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Definition
| a common alkali metal that is an ingredient in table salt an lye; also used in street lights |
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| a solid halogen that sublimes when heated; used in iodized salt and medical antiseptics |
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Definition
| the most widely used halogen |
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Definition
| used in bleach, disinfectants, and PVC; and ingredient in table salt |
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Definition
| a halogen that is liquid at room temperature; used in photographic film |
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Definition
| a halogen used in toothpaste, coolants, Teflon, and high-powered military lasers |
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Definition
| a noble gas used in balloons and lasers |
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Definition
| a noble gas used in signs and lasers |
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| a noble gas commonly used as a filler in incandescent light bulbs; the most plentiful of the noble gases |
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Definition
| anything that takes up space and has mass |
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| the study of what substances are made of, and how one stubstance can be changed into another |
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| the measure of the pull of gravity on an object |
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| the amount of matter that makes up an object |
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| the amount of matter (mass) in one unit of volume (space) |
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| the tiny particles that compose all matter |
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| the extremely dense core of an atom |
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| the tiny particles that swarm around the nucleus of an atom at fast speeds |
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| the unit used to measure an object's mass |
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| two particles found in the nucleus |
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Definition
| the simplest kind of atom with one proton and one electron |
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| the number of protons an atom has |
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| formed by electrons flying around the nucleus |
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| positive electrical charge |
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| electrons in orbit at roughly the same distance from the nucleus are said to be in the same ________. |
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Definition
| substances that are composed of only one type of atom |
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Definition
| substances that are composed of more than one type of atom bonded together |
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| of an object changes from place to place |
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| the most abundant of the transuranium elements |
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Definition
| the densest element of all |
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Term
| METALS, NONMETALS, AND SEMIMETALS |
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Definition
| three main groups of elements |
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| liquid at room temperature |
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Definition
| the densest of everyday metals |
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| the most abundant element on the earth's surface |
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| PERIODIC TABLE OF ELEMENTS |
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Definition
| organized arrangement of elements |
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| do not usually combine with anything else |
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| A TINY GROUP OF TWO OR MORE ATOMS THAT ARE BONDED TIGHTLY TOGETHER |
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| compounds made up of molecules |
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| compounds that are composed of charged atoms or groups of atoms |
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| a process in which atoms of elements or compounds are rearranged to form new substances |
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| whenever a substance reacts rapidly with oxygen |
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