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Ch12 Periodic Table

good luck lawlz :)

QuestionAnswer
Which scientist first discovered the pattern to the elements on the periodic table based on physical properties? Mendeleev
How are elements arranged? By atomic number
What does periodic mean? occurring at regular intervals
Which scientist discovered the pattern to the elements on the periodic table based on atomic number? Moseley
Where are metals found in the periodic table? Left of zigzag line
Where are nonmetals found in the periodic table? Right of zigzag line
Where are metalloids found in the periodic table? Along zigzag line (except aluminum)
Which part of the periodic table travels in rows? Periods
Which part of the periodic table travels in columns? Groups
How are elements classified in groups? By increasing valence electrons
_____ ____ have a complete set of valence electrons. Noble Gases
True or False: Most nonmetals are good conductors of heat and electricity, are ductile, and are malleable False
True or False: Hydrogen falls into its own group. True
As you go down a group, how does the reactivity change? Elements become more reactive
In periods, what do most elements have in common? Properties
As you go down a period, how does the reactivity MOSTLY change? Elements become less reactive
What causes the reactivity to change between groups? The more valence electrons you have, the harder it is to get rid of them
Created by: hannahebba1
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