Periodic table of elements

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Across
  1. 5. Periodic Law of Mendeleev ,,Physical and chemical properties of elements are periodic functions of their _______."
  2. 7. Electron affinity _______ towards the same period with increasing of atomic number.
  3. 8. Lithium has ________________ 1s2 2s1.
  4. 11. Elements of first group of periodic table.
  5. 13. Electronegativity ________ going down to the same group.
  6. 15. Advantage of Mendeleev was that he left ___ spaces for elements not discovered yet.
  7. 16. Elements of 18th group in periodic table.
  8. 17. Mininum of energy needed to remove an electron from the atom in gaseous state.
Down
  1. 1. Moseley discovered that physical and chemical properties of elements are periodic functions of their ______.
  2. 2. Elements of 17th group in periodic table.
  3. 3. Ionic radius is _____ from atomic radius.
  4. 4. Half-distance between two nucleus' of atoms.
  5. 6. Atomic radius ______ going down to the same group.
  6. 9. Newlands discovered that 8th element has similar properties to 1st one, known as law of______.
  7. 10. Dobereiner arranged elements in group of three known as law of ______.
  8. 12. Contemporary periodic table has ___ periods and 18 groups.
  9. 14. Flourine has the highest __________ of 4.0.