Elements and Periodic Table

tend to be good conductors of heat and electricity

• Non  Metals
• Metals
• metalloids
• hydrogen 

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as you move from left to right on the periodic table, elements become

• Less Metallic
• more metallic
• more reactive
• less reactive 

Mendeleev studied elements and looked for

• properties
• reactions
• patterns
• atomic numbers 

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conduct heat and electricity under certain conditions

• metalloids
• non metals
• metals
• gallium 

are in group 18

• noble gases
• halogens 
• alkali metals
• alkaline earth metals 

are located in the center of the periodic table

• metals
• nonmetals
• transition metals 
• hydrogen 

elements in the same family have similar _________ and ____________ properties

• chemical/reaction
• chemical/physical
• physical/mental
• reactions/chemical

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are shiny

• nonmetals
• noble gases
• halogens 
• metals 

some elements are highly ____________ because their outer most energy levels are partially filled

• ugly 
• non-reactive
• reactive
• prized 

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a groups elements react similarly because of their

• protons
• neutrons
• valence electrons
• non-valence electrons 

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