Periodic table

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  1. 2. which group does silicon belong to
  2. 5. The equation below represents a chemical reaction that occurs in living cells.how many atoms are represented in the reactants of this equation?
  3. 8. Groups (columns) tell you an atom's
  4. 11. How many energy levels does Calcium have?
  5. 14. Which element has 2 valence electrons and 4 energy levels?
  6. 16. which element would have similar properties tomagnesium
  7. 17. How many valence electrons does Gallium have?
  8. 18. Which element is the most reactive?
  9. 21. The chemical formula for sodium sulfate is Na2SO4. How many total atoms are in the formula?
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  1. 1. which group does iron belong to
  2. 3. whichgroup does neon belong to
  3. 4. Which element would have similar properties to Sulfur?
  4. 5. which group does helium belong to
  5. 6. How many valence electrons are in an atom of each element in Group 15 in the periodic table?
  6. 7. A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater atomic mass. Which element should the researcher select for the experiment?
  7. 9. Periods tells you an atom's ...
  8. 10. Which element would have similar properties to
  9. 12. 2Mg + O2 → 2MgOIn the equation above, what is the total number of atoms on the reactant side?
  10. 13. Which element has 2 valence electrons and 3 energy levels?
  11. 15. Which element would have similar properties to bromine
  12. 19. Which element has 3 energy levels and similar properties to Oxygen?
  13. 20. which group does nitrogen belong to