Relacionar Columnas 8.5C_VocabMatchVersión en línea 8.5C Patterns of The PTE. por Andrea Soliz 1 reactive 2 Periodic Table of Elements 3 Noble Gas 4 Group 1 and 17 5 Groups 6 Periods 7 Metal 8 nonreactive 9 Non-metal These groups are known for being highly reactive The organization of elements into groups and periods based on their chemical properties. The columns on the periodic table that show elements with the same number of valence elecrons a term used to describe an element that has a full valence shell. The type of of element characterized by being dull, brittle, and poor conductors of heat and electricity. The most common type of element characterized by being shiny, malleable, ductile, and good conductors The rows on the periodic table that show elements with the same number of energy levels The type of element that is characterized by being unreactive non-metals in group 18. a term used to describe elements that do not have a complete valence shell.