Periodic Groups

Group 1: Alkali Metals

Group 1: Alkali Metals

Li-Fr

• soft

• reacts violently with water

• creates bases with water

• oxidizes quickly

• conducts electricity

• not found pure in nature

  • found in compounds

• ends in s1

group 2: Alkaline Earth Metals

• harder

• reacts with water

  • not violently

• creates bases

• oxidizes slower

• conducts electricity

• not found pure in nature

• ends in s²

Group 3: Transition Metals

• d-block

  • d1-10

• harder

• don’t react with water

• don’t make bases

• oxidize slower

• found pure in ore

Post Transition metals

Al, Ba, In, Sn, Pb, Th, Bị

group 17: Halogens

F-At

• most reactive non-metals

• ends in p5

• all 3 states of matter represented

group 18: noble gases

F-At

• non-reactive (inert)

• electron levels are full

• all gases

• glow/conduct e

Metalloids

B, Si, As, Te, At, Ge, Sb

• silicon is a semi-conductor

  • better control over electrons = electronics

• have metal and non-metal properties

Hydrogen

• gas

• very reactive

• 1s1

• most abundant in universe

• stars are made of