Chemistry Crossword

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Across
  1. 2. Element from Group 17 and the 3rd Period
  2. 4. elements such as Si, Ge, As lie at the borderline between metals and non-metals which are called ___________.
  3. 7. an element that all have the same number of protons but different number of neutrons
  4. 8. similarity among the physical and chemical properties of several groups of three elements
  5. 9. noble gas configuration
  6. 10. SI unit of temperature
Down
  1. 1. a point or plane where density function reduces to zero
  2. 3. the process of intermixing of the orbitals of slightly different energies so as to re-distribute their energy resulting in the formation of new set of orbitals of equivalent energies and shape
  3. 4. consists of 6.022 x 10^23 units of any substance
  4. 5. the removal of an electron from an atom results in the formation of a _______.
  5. 6. it is defined as the number of moles in the solute in 1 L of the solution