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5 Written questions

5 Matching questions

  1. Boron
  2. Scandium
  3. J.J. Thompson
  4. Groups/Families
  5. Strong Nuclear Force
  1. a Have similar chemical properties. Columns
  2. b Why the protons in an atom don't break apart
  3. c B
  4. d Sc
  5. e Identified the electron

5 Multiple choice questions

  1. Mg
  2. Created by Dalton- states that all matter is composed of tiny particles called atoms. a) each element is made of atoms b) all atoms of a given element are identical c) atoms of diff. elements have diff properties (mass, chem. reactivity) d) atoms are not changed by chem. reactions but rearranged into diff. compounds e) compounds are formed when atoms of more than one element combine f) A compound is defined by the number, type (element), and proportion of the constituent atoms
  3. have properties of both metals and nonmetals, conduct electricity better than nonmetals but worse than metals
  4. Mendeleev created this which lists the elements in order of atomic number
  5. Discovers the neutron

5 True/False questions

  1. NitrogenN


  2. TitaniumTi


  3. NeonB


  4. ElementA pure substance that can not be broken down through chemical means - made up of ONE type of atom


  5. Electron Shells/CloudsWhere electrons "live", seven in total. Divided into orbitals