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5 Written questions

5 Matching questions

  1. Atomic Theory
  2. Element
  3. Isotopes
  4. Sodium
  5. J, Dalton
  1. a Reintroduced the atom with evidence
  2. b A pure substance that can not be broken down through chemical means - made up of ONE type of atom
  3. c 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
  4. d Na
  5. e Atoms of the same kinda of matter with different numbers of neutrons

5 Multiple choice questions

  1. Created by combining atoms
  2. discovers the positive charged nucleus
  3. Where electrons "live", seven in total. Divided into orbitals
  4. H
  5. proposed the idea of atoms

5 True/False questions

  1. PotassiumK


  2. Bohr's model(a) similar to Rutherford (b) Electrons travel in a set path of levels (c) Distinct steps between levels (d) Described Electrons as moving around the nucleus in fixed units


  3. FluorineF


  4. CalciumSc


  5. Atomsshiny, high conductivity, malleable, high density


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