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The vertical (up and down) columns in the Periodic Table are called? groups- towers - periods - atomic numbers
groups
What is the name of group number 1? halogens - noble gases - alkali metals - alkaline earth metals
alkali metals
how many elements in the modern periodic table ? 100 - 181 - 117 -118
118
A row on the Periodic Table of Elements ? family - period - row - isotope
period
True or False: The reactivity of metals tends to decrease as you move from left to right across the periodic table. ? True - False
True
Name this group: These elements, also known as inert gases, tend to be nonreactive. ? Halogen family- Noble gases - Carbon family - Nitrogen family
Noble gases
About 3⁄4 of the elements on the periodic table are ________. metalloids - nonmetals - metals - gases
metals
All _________ share properties that include luster, conductivity, malleability, and ductility. gases- nonmetals - metalloids -metals
metals
Group 1 metals that react quickly with other elements are ___________.? metals- alkaline earth metals - alkali metals- nonmetals
-alkali metals
___________ are located on the left side of the periodic table.? Nonmetals- Gases -Metals - Metalloids
Metals
