The Periodic table

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Across
  1. 3. if it has 6protons and 5electrons what is the charge
  2. 4. what dose P equal
  3. 7. Mendeleev who published a periodic table of the elements.
  4. 9. what is the formula for radius
  5. 11. S stands for
  6. 12. metals what row has the stable metals
  7. 13. elements The s-block elements and the p-block elements are together called the
  8. 15. what is the periodic table order by
  9. 18. affinity When energy is released in a chemical reaction or process, that energy is expressed as a negative number.
Down
  1. 1. what is one of the noble metals
  2. 2. what is the happy number
  3. 3. protons:78 Neutrons:17 platinum has a mass number of 195 and contains 74 electrons. How many protons and neutrons and its charge is/
  4. 5. the ions that are positive are called
  5. 6. is a vertical column of the periodic table
  6. 8. What is the most of on the periodic table
  7. 10. solve C2 H3 O
  8. 14. how much charge dose OH- have
  9. 16. Radius generally decrease from left to
  10. 17. what is the first row called on the periodic table called
  11. 19. what is the change of a calcium ion with 18 electrons