Which letter represents the protons? - PowerPoint PPT Presentation

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Which letter represents the protons?

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Which letter represents the protons?
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Which letter represents the protons?

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  1. Which letter represents the protons?

  2. Which letter represents the neutrons?

  3. Which letter represents the electrons?

  4. Which letter represents the nucleus?

  5. What is the name of the element represented by this model?

  6. The identity of an element is determined by what?

  7. What is the charge of an electron?

  8. What is the charge of an electron? • negative

  9. What is the charge of an proton?

  10. What is the charge of an proton? • positive

  11. What is the charge of an neutron?

  12. What is the charge of an neutron? • Neutral • What does neutral mean?

  13. The identity of an element is determined by what?

  14. The number of protons. The identity of an element is determined by what?

  15. What element is this?

  16. What element is this? Boron

  17. What element is this?

  18. What element is this? Carbon

  19. Calcium

  20. chlorine

  21. Silicon

  22. Metals

  23. Nonmetal

  24. Metalloid

  25. Valence electrons are important because they determine… • The state of matter • Chemical properties • Reactivity • Both b and c

  26. Hydrogen, Lithium and Sodium are all in group #___ …

  27. Hydrogen, Lithium and Sodium are all in group #_1_ …

  28. Potassium, Scandium and Calcium are all in period #___