Family Characteristics
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卡片预览 (10 张)
Alkali metals
• group 1 • most reactive metals • tend to donate electrons in reactions • low melting and boiling point • less dense • highly reactive • large atomic radii • all found naturally in nature but not in pure form
Alkaline earth metals
• easily lose electrons • shiny and silvery (pure form, rarely appear in pure form) • low ionization energy, electron affinity, low electronegatvity • ## good conductors
Halogens
• more reactive than other nonmetals • very reactive with groups 1 and 2 • high in EN, EA, and IE
Noble gases
• extremely non-reactive • largest ionization energy • stable • low melting and bioling points
metals
• solids under standard conditions • high melting points and densities • highly malleable and high ductility • low ENC, EN, IE • large atomic radius, small ionic radius • good conductors of heat and energy
nonmetals
• poor conductors • high IE, ENC, EN • small atomic radii and large ionic radius
transition metals
• high electric conductivity • low EA, EN, IE • high melting and bioling pts
metalloids
• solids • brittle -semi conductive • ductile and malleable -metallic luster • easily form anions
islands of stability
p6>d10>d5>p3>s2
p block exception order
s>p>d