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The Periodic Table and Atomic Structure
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Why does reactivity decrease down Group 7?
 
Atoms larger - electrons less attracted to nucleus
 
Atoms smaller - electrons more attracted to nucleus
Why does reactivity increase down Group 1?
 
Electrons in outer shell further from nucleus
 
Electrons in outer shell closer to nucleus
The elements in the Periodic table are currently arranged by...
 
Atomic proton number
 
Atomic mass
 
Group number
 
Period number
The elements in the Periodic table were originally arranged by...
 
Atomic weight
 
Atomic proton number
 
Group number
 
Period number
An isotope is...
 
An atom with a different number of neutrons
 
An atom with a different number of protons
 
An atom with a different number of electrons
An ion is an atom that...
 
Has lost or gained electrons
 
Has formed a bond with a non metal
 
Has a neutral charge
What happens to reactivity as you go down Group 7?
 
It decreases
 
It increases
What happens to reactivity as you go down Group 1?
 
It increases
 
It decreases
Which element is in group 7?
 
Chlorine
 
Gold
 
Oxygen
 
Hydrogen
Which element is in group 1?
 
Lithium
 
Gold
 
Copper
 
Oxygen
Which elements does the chemical symbol "Mg" represent?
Magnesium
Which elements does the chemical symbol "Cu" represent?
Copper
Which elements does the chemical symbol "Pb" represent?
Lead
Which elements does the chemical symbol "Au" represent?
Gold
Which elements does the chemical symbol "Fe" represent?
Iron
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