Data

Copy and paste the text below. It is read-only. Select All

PERIODIC TABLE OF ELEMENTS - A SYSTEMATIC ARRANGEMENT OF ELEMENTS THAT ACCOUNTS FOR THE SIMILARITIES AND DIFFERENCES IN THE PROPERTIES OF VARIOUS ELEMENTS METALS - THE ELEMENTS THAT ARE SHINY, CONDUCT HEAT AND ELECTRICITY, ARE MALLEABLE AND DUCTILE, AND ARE LOCATED TO THE LEFT OF THE ZIGZAG LINE. NONMETALS - THE ELEMENTS THAT ARE POOR CONDUCTORS OF HEAT AND ELECTRICITY, ARE BRITTLE, AND ARE LOCATED TO THE RIGHT OF THE ZIGZAG LINE. METALLOIDS - LOCATED ALONG EITHER SIDE OF THE ZIGZAG LINE, THESE ELEMENTS POSSESS PROPERTIES OF BOTH THE METALS AND THE NONMETALS. PERIOD (row) OF ELEMENTS A HORIZONTAL ROW IN THE PERIODIC TABLE OF ELEMENTS THAT HAVE THE SAME NUMBER OF ENERGY LEVELS GROUP (column) OF ELEMENS /ALSO CALLED A FAMILY - A VERTICAL COLUMN IN THE PERIODIC TABLE THAT MAKES UP A FAMILY OF ELEMENTS WITH SIMILAR PROPERTIES ELECTRON CONFIGURATION - THE NUMBER OF ELECTRONS IN EACH ENERGY LEVEL OF AN ATOM. THE GREATER THE DISTANCE FROM THE NUCLEUS OF AN ATOM, THE GREATER THE ENERGY IN THE ELECTRON LUSTER - THE ABILITY OF A SUBSTANCE TO SHINE BY REFLECTING LIGHT DENSITY - THE AMOUNT OF MATTER (MASS) IN A GIVEN VOLUME OF A PARTICULAR SUBSTANCE (STATED IN GRAMS PER CUBIC CENTIMETER FOR SOLIDS AND GRAMS PER MILLILITER FOR LIQUIDS AND GASES) DUCTILE (DUCTILITY) - ABLE TO BE DRAWN INTO A WIRE MALLEABLE (MALLEABILITY) - ABLE TO BE HAMMERED INTO DIFFERENT SHAPES WITHOUT BREAKING INERT - NOT REACTIVE NOBLE GASSES - THE ELEMENTS THAT ARE CONTAINED IN COLUMN VIII OF THE PERIODIC TABLE ALKALI METALS - A GROUP OF HIGHLY REACTIVE SOFT METALS OF LOW DENSITY THAT ARE GOOD CONDUCTORS, ARE MALLEABLE AND DUCTILE, AND HAVE A LOW MELTING POINT HALOGENS - THE ELEMENTS LISTED IN COLUMN VII OF THE PERIODIC TABLE THAT TEND TO GAIN ELECTRONS