Atomic structure

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Across
  1. 4. Consists of two or more elements or compounds not chemically bonded
  2. 7. The number in the periodic table stating the total number of protons and neutrons in an atom
  3. 8. The overall charge of an atom
  4. 12. The number in the periodic table stating the number of protons an atom has
  5. 13. Contain two or more elements chemically bonded
  6. 14. The Alpha Particle Scattering Experiment led to the discovery of the...
Down
  1. 1. The number of protons in an atom is the same as the number of...
  2. 2. The average mass of an atom that takes into account the abundance of isotopes of the element
  3. 3. The subatomic particle with a relative charge of +1 and a relative mass of 1
  4. 5. The smallest part of an elements that can exist
  5. 6. Atoms of the same element with the same number of protons but a different number of neutrons
  6. 7. Formed from a reaction between two of the same atom
  7. 9. proton The subatomic particle with a relative charge of -1 and a very small relative mass
  8. 10. An early model of the atom that depicted a ball of positive charge with negative electrons in it
  9. 11. proton The subatomic particle with a relative charge of 0 and a relative mass of 1