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5 Written questions

5 Matching questions

  1. carbon-14
  2. atom
  3. precision
  4. molecule
  5. higher
  1. a second ionization energies are ______ than first ionization energies
  2. b the smallest particle of an element that retains the chemical properties of that element
  3. c a neutral group of atoms held together by covalent bonds
  4. d one atomic mass unit that is exactly 1/12 the mass of a _______ atom.
  5. e a measure of how close a series of measurements are to one another

5 Multiple choice questions

  1. the strength of metallic bonds is given by __________
  2. which of the following elements has the highest electronegitivity?
  3. the total number of protons and neutrons that make up the nucleus of an isotope
  4. the mass of one mole of a pure substance is called the __________ of that substance
  5. hydrogen bonding can occur when hydrogen is covalently bonded to a highly ________ atom

5 True/False questions

  1. photona particle of electromagnetic radiation having zero mass and carrying a quantum of energy


  2. systema specific portion of matter in a given region of space that has been selected for study during an experiment or observation.


  3. transition elementsthe energy change that occurs when an electron is acquired by a neutral atom


  4. covalent bonda mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together


  5. dimensional analysisthe mass of one mole of a pure substance is called the __________ of that substance


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